.

1 files changed, 801 insertions, 701 deletions

diff --git a/tests/tail/tail-tests b/tests/tail/tail-tests
index 0071f388c..2230a0ea5 100755
--- a/tests/tail/tail-tests
+++ b/tests/tail/tail-tests
@@ -20,1705 +20,1805 @@ export LANG
 
 $xx +2c $srcdir/obs-c1.I > obs-c1.O 2> obs-c1.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-c1(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-c1.O $srcdir/obs-c1.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-c1(F)"; fi ;;
-    1) $echo "Test obs-c1(F) failed: files obs-c1.O and $srcdir/obs-c1.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-c1(F) may have failed." 1>&2;
-       $echo The command "cmp obs-c1.O $srcdir/obs-c1.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-c1(F)"; fi;;
+    1) $echo "Test obs-c1(F) failed: files obs-c1.O and $srcdir/obs-c1.X differ" 1>&2
+       (diff -c obs-c1.O $srcdir/obs-c1.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-c1(F) may have failed." 1>&2
+       $echo The command "cmp obs-c1.O $srcdir/obs-c1.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-c1.E || rm -f obs-c1.E
 cat $srcdir/obs-c1.I | $xx +2c > obs-c1.O 2> obs-c1.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-c1(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-c1.O $srcdir/obs-c1.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-c1(|)"; fi ;;
-    1) $echo "Test obs-c1(|) failed: files obs-c1.O and $srcdir/obs-c1.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-c1(|) may have failed." 1>&2;
-       $echo The command "cmp obs-c1.O $srcdir/obs-c1.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-c1(|)"; fi;;
+    1) $echo "Test obs-c1(|) failed: files obs-c1.O and $srcdir/obs-c1.X differ" 1>&2
+       (diff -c obs-c1.O $srcdir/obs-c1.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-c1(|) may have failed." 1>&2
+       $echo The command "cmp obs-c1.O $srcdir/obs-c1.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-c1.E || rm -f obs-c1.E
 $xx +2c < $srcdir/obs-c1.I > obs-c1.O 2> obs-c1.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-c1(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-c1.O $srcdir/obs-c1.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-c1(<)"; fi ;;
-    1) $echo "Test obs-c1(<) failed: files obs-c1.O and $srcdir/obs-c1.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-c1(<) may have failed." 1>&2;
-       $echo The command "cmp obs-c1.O $srcdir/obs-c1.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-c1(<)"; fi;;
+    1) $echo "Test obs-c1(<) failed: files obs-c1.O and $srcdir/obs-c1.X differ" 1>&2
+       (diff -c obs-c1.O $srcdir/obs-c1.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-c1(<) may have failed." 1>&2
+       $echo The command "cmp obs-c1.O $srcdir/obs-c1.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-c1.E || rm -f obs-c1.E
 $xx +8c $srcdir/obs-c2.I > obs-c2.O 2> obs-c2.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-c2(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-c2.O $srcdir/obs-c2.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-c2(F)"; fi ;;
-    1) $echo "Test obs-c2(F) failed: files obs-c2.O and $srcdir/obs-c2.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-c2(F) may have failed." 1>&2;
-       $echo The command "cmp obs-c2.O $srcdir/obs-c2.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-c2(F)"; fi;;
+    1) $echo "Test obs-c2(F) failed: files obs-c2.O and $srcdir/obs-c2.X differ" 1>&2
+       (diff -c obs-c2.O $srcdir/obs-c2.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-c2(F) may have failed." 1>&2
+       $echo The command "cmp obs-c2.O $srcdir/obs-c2.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-c2.E || rm -f obs-c2.E
 cat $srcdir/obs-c2.I | $xx +8c > obs-c2.O 2> obs-c2.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-c2(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-c2.O $srcdir/obs-c2.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-c2(|)"; fi ;;
-    1) $echo "Test obs-c2(|) failed: files obs-c2.O and $srcdir/obs-c2.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-c2(|) may have failed." 1>&2;
-       $echo The command "cmp obs-c2.O $srcdir/obs-c2.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-c2(|)"; fi;;
+    1) $echo "Test obs-c2(|) failed: files obs-c2.O and $srcdir/obs-c2.X differ" 1>&2
+       (diff -c obs-c2.O $srcdir/obs-c2.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-c2(|) may have failed." 1>&2
+       $echo The command "cmp obs-c2.O $srcdir/obs-c2.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-c2.E || rm -f obs-c2.E
 $xx +8c < $srcdir/obs-c2.I > obs-c2.O 2> obs-c2.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-c2(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-c2.O $srcdir/obs-c2.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-c2(<)"; fi ;;
-    1) $echo "Test obs-c2(<) failed: files obs-c2.O and $srcdir/obs-c2.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-c2(<) may have failed." 1>&2;
-       $echo The command "cmp obs-c2.O $srcdir/obs-c2.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-c2(<)"; fi;;
+    1) $echo "Test obs-c2(<) failed: files obs-c2.O and $srcdir/obs-c2.X differ" 1>&2
+       (diff -c obs-c2.O $srcdir/obs-c2.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-c2(<) may have failed." 1>&2
+       $echo The command "cmp obs-c2.O $srcdir/obs-c2.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-c2.E || rm -f obs-c2.E
 $xx -1c $srcdir/obs-c3.I > obs-c3.O 2> obs-c3.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-c3(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-c3.O $srcdir/obs-c3.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-c3(F)"; fi ;;
-    1) $echo "Test obs-c3(F) failed: files obs-c3.O and $srcdir/obs-c3.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-c3(F) may have failed." 1>&2;
-       $echo The command "cmp obs-c3.O $srcdir/obs-c3.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-c3(F)"; fi;;
+    1) $echo "Test obs-c3(F) failed: files obs-c3.O and $srcdir/obs-c3.X differ" 1>&2
+       (diff -c obs-c3.O $srcdir/obs-c3.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-c3(F) may have failed." 1>&2
+       $echo The command "cmp obs-c3.O $srcdir/obs-c3.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-c3.E || rm -f obs-c3.E
 cat $srcdir/obs-c3.I | $xx -1c > obs-c3.O 2> obs-c3.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-c3(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-c3.O $srcdir/obs-c3.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-c3(|)"; fi ;;
-    1) $echo "Test obs-c3(|) failed: files obs-c3.O and $srcdir/obs-c3.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-c3(|) may have failed." 1>&2;
-       $echo The command "cmp obs-c3.O $srcdir/obs-c3.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-c3(|)"; fi;;
+    1) $echo "Test obs-c3(|) failed: files obs-c3.O and $srcdir/obs-c3.X differ" 1>&2
+       (diff -c obs-c3.O $srcdir/obs-c3.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-c3(|) may have failed." 1>&2
+       $echo The command "cmp obs-c3.O $srcdir/obs-c3.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-c3.E || rm -f obs-c3.E
 $xx -1c < $srcdir/obs-c3.I > obs-c3.O 2> obs-c3.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-c3(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-c3.O $srcdir/obs-c3.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-c3(<)"; fi ;;
-    1) $echo "Test obs-c3(<) failed: files obs-c3.O and $srcdir/obs-c3.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-c3(<) may have failed." 1>&2;
-       $echo The command "cmp obs-c3.O $srcdir/obs-c3.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-c3(<)"; fi;;
+    1) $echo "Test obs-c3(<) failed: files obs-c3.O and $srcdir/obs-c3.X differ" 1>&2
+       (diff -c obs-c3.O $srcdir/obs-c3.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-c3(<) may have failed." 1>&2
+       $echo The command "cmp obs-c3.O $srcdir/obs-c3.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-c3.E || rm -f obs-c3.E
 $xx -9c $srcdir/obs-c4.I > obs-c4.O 2> obs-c4.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-c4(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-c4.O $srcdir/obs-c4.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-c4(F)"; fi ;;
-    1) $echo "Test obs-c4(F) failed: files obs-c4.O and $srcdir/obs-c4.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-c4(F) may have failed." 1>&2;
-       $echo The command "cmp obs-c4.O $srcdir/obs-c4.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-c4(F)"; fi;;
+    1) $echo "Test obs-c4(F) failed: files obs-c4.O and $srcdir/obs-c4.X differ" 1>&2
+       (diff -c obs-c4.O $srcdir/obs-c4.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-c4(F) may have failed." 1>&2
+       $echo The command "cmp obs-c4.O $srcdir/obs-c4.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-c4.E || rm -f obs-c4.E
 cat $srcdir/obs-c4.I | $xx -9c > obs-c4.O 2> obs-c4.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-c4(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-c4.O $srcdir/obs-c4.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-c4(|)"; fi ;;
-    1) $echo "Test obs-c4(|) failed: files obs-c4.O and $srcdir/obs-c4.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-c4(|) may have failed." 1>&2;
-       $echo The command "cmp obs-c4.O $srcdir/obs-c4.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-c4(|)"; fi;;
+    1) $echo "Test obs-c4(|) failed: files obs-c4.O and $srcdir/obs-c4.X differ" 1>&2
+       (diff -c obs-c4.O $srcdir/obs-c4.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-c4(|) may have failed." 1>&2
+       $echo The command "cmp obs-c4.O $srcdir/obs-c4.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-c4.E || rm -f obs-c4.E
 $xx -9c < $srcdir/obs-c4.I > obs-c4.O 2> obs-c4.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-c4(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-c4.O $srcdir/obs-c4.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-c4(<)"; fi ;;
-    1) $echo "Test obs-c4(<) failed: files obs-c4.O and $srcdir/obs-c4.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-c4(<) may have failed." 1>&2;
-       $echo The command "cmp obs-c4.O $srcdir/obs-c4.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-c4(<)"; fi;;
+    1) $echo "Test obs-c4(<) failed: files obs-c4.O and $srcdir/obs-c4.X differ" 1>&2
+       (diff -c obs-c4.O $srcdir/obs-c4.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-c4(<) may have failed." 1>&2
+       $echo The command "cmp obs-c4.O $srcdir/obs-c4.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-c4.E || rm -f obs-c4.E
 $xx -12c $srcdir/obs-c5.I > obs-c5.O 2> obs-c5.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-c5(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-c5.O $srcdir/obs-c5.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-c5(F)"; fi ;;
-    1) $echo "Test obs-c5(F) failed: files obs-c5.O and $srcdir/obs-c5.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-c5(F) may have failed." 1>&2;
-       $echo The command "cmp obs-c5.O $srcdir/obs-c5.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-c5(F)"; fi;;
+    1) $echo "Test obs-c5(F) failed: files obs-c5.O and $srcdir/obs-c5.X differ" 1>&2
+       (diff -c obs-c5.O $srcdir/obs-c5.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-c5(F) may have failed." 1>&2
+       $echo The command "cmp obs-c5.O $srcdir/obs-c5.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-c5.E || rm -f obs-c5.E
 cat $srcdir/obs-c5.I | $xx -12c > obs-c5.O 2> obs-c5.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-c5(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-c5.O $srcdir/obs-c5.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-c5(|)"; fi ;;
-    1) $echo "Test obs-c5(|) failed: files obs-c5.O and $srcdir/obs-c5.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-c5(|) may have failed." 1>&2;
-       $echo The command "cmp obs-c5.O $srcdir/obs-c5.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-c5(|)"; fi;;
+    1) $echo "Test obs-c5(|) failed: files obs-c5.O and $srcdir/obs-c5.X differ" 1>&2
+       (diff -c obs-c5.O $srcdir/obs-c5.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-c5(|) may have failed." 1>&2
+       $echo The command "cmp obs-c5.O $srcdir/obs-c5.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-c5.E || rm -f obs-c5.E
 $xx -12c < $srcdir/obs-c5.I > obs-c5.O 2> obs-c5.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-c5(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-c5.O $srcdir/obs-c5.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-c5(<)"; fi ;;
-    1) $echo "Test obs-c5(<) failed: files obs-c5.O and $srcdir/obs-c5.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-c5(<) may have failed." 1>&2;
-       $echo The command "cmp obs-c5.O $srcdir/obs-c5.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-c5(<)"; fi;;
+    1) $echo "Test obs-c5(<) failed: files obs-c5.O and $srcdir/obs-c5.X differ" 1>&2
+       (diff -c obs-c5.O $srcdir/obs-c5.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-c5(<) may have failed." 1>&2
+       $echo The command "cmp obs-c5.O $srcdir/obs-c5.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-c5.E || rm -f obs-c5.E
 $xx -1l $srcdir/obs-l1.I > obs-l1.O 2> obs-l1.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-l1(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-l1.O $srcdir/obs-l1.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-l1(F)"; fi ;;
-    1) $echo "Test obs-l1(F) failed: files obs-l1.O and $srcdir/obs-l1.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-l1(F) may have failed." 1>&2;
-       $echo The command "cmp obs-l1.O $srcdir/obs-l1.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-l1(F)"; fi;;
+    1) $echo "Test obs-l1(F) failed: files obs-l1.O and $srcdir/obs-l1.X differ" 1>&2
+       (diff -c obs-l1.O $srcdir/obs-l1.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-l1(F) may have failed." 1>&2
+       $echo The command "cmp obs-l1.O $srcdir/obs-l1.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-l1.E || rm -f obs-l1.E
 cat $srcdir/obs-l1.I | $xx -1l > obs-l1.O 2> obs-l1.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-l1(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-l1.O $srcdir/obs-l1.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-l1(|)"; fi ;;
-    1) $echo "Test obs-l1(|) failed: files obs-l1.O and $srcdir/obs-l1.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-l1(|) may have failed." 1>&2;
-       $echo The command "cmp obs-l1.O $srcdir/obs-l1.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-l1(|)"; fi;;
+    1) $echo "Test obs-l1(|) failed: files obs-l1.O and $srcdir/obs-l1.X differ" 1>&2
+       (diff -c obs-l1.O $srcdir/obs-l1.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-l1(|) may have failed." 1>&2
+       $echo The command "cmp obs-l1.O $srcdir/obs-l1.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-l1.E || rm -f obs-l1.E
 $xx -1l < $srcdir/obs-l1.I > obs-l1.O 2> obs-l1.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-l1(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-l1.O $srcdir/obs-l1.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-l1(<)"; fi ;;
-    1) $echo "Test obs-l1(<) failed: files obs-l1.O and $srcdir/obs-l1.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-l1(<) may have failed." 1>&2;
-       $echo The command "cmp obs-l1.O $srcdir/obs-l1.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-l1(<)"; fi;;
+    1) $echo "Test obs-l1(<) failed: files obs-l1.O and $srcdir/obs-l1.X differ" 1>&2
+       (diff -c obs-l1.O $srcdir/obs-l1.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-l1(<) may have failed." 1>&2
+       $echo The command "cmp obs-l1.O $srcdir/obs-l1.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-l1.E || rm -f obs-l1.E
 $xx -1l $srcdir/obs-l2.I > obs-l2.O 2> obs-l2.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-l2(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-l2.O $srcdir/obs-l2.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-l2(F)"; fi ;;
-    1) $echo "Test obs-l2(F) failed: files obs-l2.O and $srcdir/obs-l2.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-l2(F) may have failed." 1>&2;
-       $echo The command "cmp obs-l2.O $srcdir/obs-l2.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-l2(F)"; fi;;
+    1) $echo "Test obs-l2(F) failed: files obs-l2.O and $srcdir/obs-l2.X differ" 1>&2
+       (diff -c obs-l2.O $srcdir/obs-l2.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-l2(F) may have failed." 1>&2
+       $echo The command "cmp obs-l2.O $srcdir/obs-l2.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-l2.E || rm -f obs-l2.E
 cat $srcdir/obs-l2.I | $xx -1l > obs-l2.O 2> obs-l2.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-l2(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-l2.O $srcdir/obs-l2.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-l2(|)"; fi ;;
-    1) $echo "Test obs-l2(|) failed: files obs-l2.O and $srcdir/obs-l2.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-l2(|) may have failed." 1>&2;
-       $echo The command "cmp obs-l2.O $srcdir/obs-l2.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-l2(|)"; fi;;
+    1) $echo "Test obs-l2(|) failed: files obs-l2.O and $srcdir/obs-l2.X differ" 1>&2
+       (diff -c obs-l2.O $srcdir/obs-l2.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-l2(|) may have failed." 1>&2
+       $echo The command "cmp obs-l2.O $srcdir/obs-l2.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-l2.E || rm -f obs-l2.E
 $xx -1l < $srcdir/obs-l2.I > obs-l2.O 2> obs-l2.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-l2(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-l2.O $srcdir/obs-l2.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-l2(<)"; fi ;;
-    1) $echo "Test obs-l2(<) failed: files obs-l2.O and $srcdir/obs-l2.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-l2(<) may have failed." 1>&2;
-       $echo The command "cmp obs-l2.O $srcdir/obs-l2.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-l2(<)"; fi;;
+    1) $echo "Test obs-l2(<) failed: files obs-l2.O and $srcdir/obs-l2.X differ" 1>&2
+       (diff -c obs-l2.O $srcdir/obs-l2.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-l2(<) may have failed." 1>&2
+       $echo The command "cmp obs-l2.O $srcdir/obs-l2.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-l2.E || rm -f obs-l2.E
 $xx -1l $srcdir/obs-l3.I > obs-l3.O 2> obs-l3.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-l3(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-l3.O $srcdir/obs-l3.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-l3(F)"; fi ;;
-    1) $echo "Test obs-l3(F) failed: files obs-l3.O and $srcdir/obs-l3.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-l3(F) may have failed." 1>&2;
-       $echo The command "cmp obs-l3.O $srcdir/obs-l3.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-l3(F)"; fi;;
+    1) $echo "Test obs-l3(F) failed: files obs-l3.O and $srcdir/obs-l3.X differ" 1>&2
+       (diff -c obs-l3.O $srcdir/obs-l3.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-l3(F) may have failed." 1>&2
+       $echo The command "cmp obs-l3.O $srcdir/obs-l3.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-l3.E || rm -f obs-l3.E
 cat $srcdir/obs-l3.I | $xx -1l > obs-l3.O 2> obs-l3.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-l3(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-l3.O $srcdir/obs-l3.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-l3(|)"; fi ;;
-    1) $echo "Test obs-l3(|) failed: files obs-l3.O and $srcdir/obs-l3.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-l3(|) may have failed." 1>&2;
-       $echo The command "cmp obs-l3.O $srcdir/obs-l3.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-l3(|)"; fi;;
+    1) $echo "Test obs-l3(|) failed: files obs-l3.O and $srcdir/obs-l3.X differ" 1>&2
+       (diff -c obs-l3.O $srcdir/obs-l3.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-l3(|) may have failed." 1>&2
+       $echo The command "cmp obs-l3.O $srcdir/obs-l3.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-l3.E || rm -f obs-l3.E
 $xx -1l < $srcdir/obs-l3.I > obs-l3.O 2> obs-l3.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-l3(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-l3.O $srcdir/obs-l3.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-l3(<)"; fi ;;
-    1) $echo "Test obs-l3(<) failed: files obs-l3.O and $srcdir/obs-l3.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-l3(<) may have failed." 1>&2;
-       $echo The command "cmp obs-l3.O $srcdir/obs-l3.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-l3(<)"; fi;;
+    1) $echo "Test obs-l3(<) failed: files obs-l3.O and $srcdir/obs-l3.X differ" 1>&2
+       (diff -c obs-l3.O $srcdir/obs-l3.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-l3(<) may have failed." 1>&2
+       $echo The command "cmp obs-l3.O $srcdir/obs-l3.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-l3.E || rm -f obs-l3.E
 $xx +1l $srcdir/obs-l4.I > obs-l4.O 2> obs-l4.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-l4(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-l4.O $srcdir/obs-l4.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-l4(F)"; fi ;;
-    1) $echo "Test obs-l4(F) failed: files obs-l4.O and $srcdir/obs-l4.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-l4(F) may have failed." 1>&2;
-       $echo The command "cmp obs-l4.O $srcdir/obs-l4.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-l4(F)"; fi;;
+    1) $echo "Test obs-l4(F) failed: files obs-l4.O and $srcdir/obs-l4.X differ" 1>&2
+       (diff -c obs-l4.O $srcdir/obs-l4.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-l4(F) may have failed." 1>&2
+       $echo The command "cmp obs-l4.O $srcdir/obs-l4.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-l4.E || rm -f obs-l4.E
 cat $srcdir/obs-l4.I | $xx +1l > obs-l4.O 2> obs-l4.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-l4(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-l4.O $srcdir/obs-l4.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-l4(|)"; fi ;;
-    1) $echo "Test obs-l4(|) failed: files obs-l4.O and $srcdir/obs-l4.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-l4(|) may have failed." 1>&2;
-       $echo The command "cmp obs-l4.O $srcdir/obs-l4.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-l4(|)"; fi;;
+    1) $echo "Test obs-l4(|) failed: files obs-l4.O and $srcdir/obs-l4.X differ" 1>&2
+       (diff -c obs-l4.O $srcdir/obs-l4.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-l4(|) may have failed." 1>&2
+       $echo The command "cmp obs-l4.O $srcdir/obs-l4.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-l4.E || rm -f obs-l4.E
 $xx +1l < $srcdir/obs-l4.I > obs-l4.O 2> obs-l4.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-l4(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-l4.O $srcdir/obs-l4.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-l4(<)"; fi ;;
-    1) $echo "Test obs-l4(<) failed: files obs-l4.O and $srcdir/obs-l4.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-l4(<) may have failed." 1>&2;
-       $echo The command "cmp obs-l4.O $srcdir/obs-l4.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-l4(<)"; fi;;
+    1) $echo "Test obs-l4(<) failed: files obs-l4.O and $srcdir/obs-l4.X differ" 1>&2
+       (diff -c obs-l4.O $srcdir/obs-l4.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-l4(<) may have failed." 1>&2
+       $echo The command "cmp obs-l4.O $srcdir/obs-l4.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-l4.E || rm -f obs-l4.E
 $xx +2l $srcdir/obs-l5.I > obs-l5.O 2> obs-l5.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-l5(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-l5.O $srcdir/obs-l5.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-l5(F)"; fi ;;
-    1) $echo "Test obs-l5(F) failed: files obs-l5.O and $srcdir/obs-l5.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-l5(F) may have failed." 1>&2;
-       $echo The command "cmp obs-l5.O $srcdir/obs-l5.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-l5(F)"; fi;;
+    1) $echo "Test obs-l5(F) failed: files obs-l5.O and $srcdir/obs-l5.X differ" 1>&2
+       (diff -c obs-l5.O $srcdir/obs-l5.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-l5(F) may have failed." 1>&2
+       $echo The command "cmp obs-l5.O $srcdir/obs-l5.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-l5.E || rm -f obs-l5.E
 cat $srcdir/obs-l5.I | $xx +2l > obs-l5.O 2> obs-l5.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-l5(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-l5.O $srcdir/obs-l5.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-l5(|)"; fi ;;
-    1) $echo "Test obs-l5(|) failed: files obs-l5.O and $srcdir/obs-l5.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-l5(|) may have failed." 1>&2;
-       $echo The command "cmp obs-l5.O $srcdir/obs-l5.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-l5(|)"; fi;;
+    1) $echo "Test obs-l5(|) failed: files obs-l5.O and $srcdir/obs-l5.X differ" 1>&2
+       (diff -c obs-l5.O $srcdir/obs-l5.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-l5(|) may have failed." 1>&2
+       $echo The command "cmp obs-l5.O $srcdir/obs-l5.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-l5.E || rm -f obs-l5.E
 $xx +2l < $srcdir/obs-l5.I > obs-l5.O 2> obs-l5.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-l5(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-l5.O $srcdir/obs-l5.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-l5(<)"; fi ;;
-    1) $echo "Test obs-l5(<) failed: files obs-l5.O and $srcdir/obs-l5.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-l5(<) may have failed." 1>&2;
-       $echo The command "cmp obs-l5.O $srcdir/obs-l5.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-l5(<)"; fi;;
+    1) $echo "Test obs-l5(<) failed: files obs-l5.O and $srcdir/obs-l5.X differ" 1>&2
+       (diff -c obs-l5.O $srcdir/obs-l5.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-l5(<) may have failed." 1>&2
+       $echo The command "cmp obs-l5.O $srcdir/obs-l5.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-l5.E || rm -f obs-l5.E
 $xx -1 $srcdir/obs-1.I > obs-1.O 2> obs-1.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-1(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-1.O $srcdir/obs-1.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-1(F)"; fi ;;
-    1) $echo "Test obs-1(F) failed: files obs-1.O and $srcdir/obs-1.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-1(F) may have failed." 1>&2;
-       $echo The command "cmp obs-1.O $srcdir/obs-1.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-1(F)"; fi;;
+    1) $echo "Test obs-1(F) failed: files obs-1.O and $srcdir/obs-1.X differ" 1>&2
+       (diff -c obs-1.O $srcdir/obs-1.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-1(F) may have failed." 1>&2
+       $echo The command "cmp obs-1.O $srcdir/obs-1.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-1.E || rm -f obs-1.E
 cat $srcdir/obs-1.I | $xx -1 > obs-1.O 2> obs-1.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-1(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-1.O $srcdir/obs-1.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-1(|)"; fi ;;
-    1) $echo "Test obs-1(|) failed: files obs-1.O and $srcdir/obs-1.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-1(|) may have failed." 1>&2;
-       $echo The command "cmp obs-1.O $srcdir/obs-1.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-1(|)"; fi;;
+    1) $echo "Test obs-1(|) failed: files obs-1.O and $srcdir/obs-1.X differ" 1>&2
+       (diff -c obs-1.O $srcdir/obs-1.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-1(|) may have failed." 1>&2
+       $echo The command "cmp obs-1.O $srcdir/obs-1.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-1.E || rm -f obs-1.E
 $xx -1 < $srcdir/obs-1.I > obs-1.O 2> obs-1.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-1(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-1.O $srcdir/obs-1.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-1(<)"; fi ;;
-    1) $echo "Test obs-1(<) failed: files obs-1.O and $srcdir/obs-1.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-1(<) may have failed." 1>&2;
-       $echo The command "cmp obs-1.O $srcdir/obs-1.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-1(<)"; fi;;
+    1) $echo "Test obs-1(<) failed: files obs-1.O and $srcdir/obs-1.X differ" 1>&2
+       (diff -c obs-1.O $srcdir/obs-1.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-1(<) may have failed." 1>&2
+       $echo The command "cmp obs-1.O $srcdir/obs-1.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-1.E || rm -f obs-1.E
 $xx -1 $srcdir/obs-2.I > obs-2.O 2> obs-2.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-2(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-2.O $srcdir/obs-2.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-2(F)"; fi ;;
-    1) $echo "Test obs-2(F) failed: files obs-2.O and $srcdir/obs-2.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-2(F) may have failed." 1>&2;
-       $echo The command "cmp obs-2.O $srcdir/obs-2.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-2(F)"; fi;;
+    1) $echo "Test obs-2(F) failed: files obs-2.O and $srcdir/obs-2.X differ" 1>&2
+       (diff -c obs-2.O $srcdir/obs-2.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-2(F) may have failed." 1>&2
+       $echo The command "cmp obs-2.O $srcdir/obs-2.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-2.E || rm -f obs-2.E
 cat $srcdir/obs-2.I | $xx -1 > obs-2.O 2> obs-2.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-2(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-2.O $srcdir/obs-2.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-2(|)"; fi ;;
-    1) $echo "Test obs-2(|) failed: files obs-2.O and $srcdir/obs-2.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-2(|) may have failed." 1>&2;
-       $echo The command "cmp obs-2.O $srcdir/obs-2.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-2(|)"; fi;;
+    1) $echo "Test obs-2(|) failed: files obs-2.O and $srcdir/obs-2.X differ" 1>&2
+       (diff -c obs-2.O $srcdir/obs-2.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-2(|) may have failed." 1>&2
+       $echo The command "cmp obs-2.O $srcdir/obs-2.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-2.E || rm -f obs-2.E
 $xx -1 < $srcdir/obs-2.I > obs-2.O 2> obs-2.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-2(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-2.O $srcdir/obs-2.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-2(<)"; fi ;;
-    1) $echo "Test obs-2(<) failed: files obs-2.O and $srcdir/obs-2.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-2(<) may have failed." 1>&2;
-       $echo The command "cmp obs-2.O $srcdir/obs-2.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-2(<)"; fi;;
+    1) $echo "Test obs-2(<) failed: files obs-2.O and $srcdir/obs-2.X differ" 1>&2
+       (diff -c obs-2.O $srcdir/obs-2.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-2(<) may have failed." 1>&2
+       $echo The command "cmp obs-2.O $srcdir/obs-2.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-2.E || rm -f obs-2.E
 $xx -1 $srcdir/obs-3.I > obs-3.O 2> obs-3.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-3(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-3.O $srcdir/obs-3.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-3(F)"; fi ;;
-    1) $echo "Test obs-3(F) failed: files obs-3.O and $srcdir/obs-3.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-3(F) may have failed." 1>&2;
-       $echo The command "cmp obs-3.O $srcdir/obs-3.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-3(F)"; fi;;
+    1) $echo "Test obs-3(F) failed: files obs-3.O and $srcdir/obs-3.X differ" 1>&2
+       (diff -c obs-3.O $srcdir/obs-3.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-3(F) may have failed." 1>&2
+       $echo The command "cmp obs-3.O $srcdir/obs-3.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-3.E || rm -f obs-3.E
 cat $srcdir/obs-3.I | $xx -1 > obs-3.O 2> obs-3.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-3(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-3.O $srcdir/obs-3.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-3(|)"; fi ;;
-    1) $echo "Test obs-3(|) failed: files obs-3.O and $srcdir/obs-3.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-3(|) may have failed." 1>&2;
-       $echo The command "cmp obs-3.O $srcdir/obs-3.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-3(|)"; fi;;
+    1) $echo "Test obs-3(|) failed: files obs-3.O and $srcdir/obs-3.X differ" 1>&2
+       (diff -c obs-3.O $srcdir/obs-3.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-3(|) may have failed." 1>&2
+       $echo The command "cmp obs-3.O $srcdir/obs-3.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-3.E || rm -f obs-3.E
 $xx -1 < $srcdir/obs-3.I > obs-3.O 2> obs-3.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-3(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-3.O $srcdir/obs-3.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-3(<)"; fi ;;
-    1) $echo "Test obs-3(<) failed: files obs-3.O and $srcdir/obs-3.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-3(<) may have failed." 1>&2;
-       $echo The command "cmp obs-3.O $srcdir/obs-3.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-3(<)"; fi;;
+    1) $echo "Test obs-3(<) failed: files obs-3.O and $srcdir/obs-3.X differ" 1>&2
+       (diff -c obs-3.O $srcdir/obs-3.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-3(<) may have failed." 1>&2
+       $echo The command "cmp obs-3.O $srcdir/obs-3.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-3.E || rm -f obs-3.E
 $xx +1 $srcdir/obs-4.I > obs-4.O 2> obs-4.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-4(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-4.O $srcdir/obs-4.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-4(F)"; fi ;;
-    1) $echo "Test obs-4(F) failed: files obs-4.O and $srcdir/obs-4.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-4(F) may have failed." 1>&2;
-       $echo The command "cmp obs-4.O $srcdir/obs-4.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-4(F)"; fi;;
+    1) $echo "Test obs-4(F) failed: files obs-4.O and $srcdir/obs-4.X differ" 1>&2
+       (diff -c obs-4.O $srcdir/obs-4.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-4(F) may have failed." 1>&2
+       $echo The command "cmp obs-4.O $srcdir/obs-4.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-4.E || rm -f obs-4.E
 cat $srcdir/obs-4.I | $xx +1 > obs-4.O 2> obs-4.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-4(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-4.O $srcdir/obs-4.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-4(|)"; fi ;;
-    1) $echo "Test obs-4(|) failed: files obs-4.O and $srcdir/obs-4.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-4(|) may have failed." 1>&2;
-       $echo The command "cmp obs-4.O $srcdir/obs-4.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-4(|)"; fi;;
+    1) $echo "Test obs-4(|) failed: files obs-4.O and $srcdir/obs-4.X differ" 1>&2
+       (diff -c obs-4.O $srcdir/obs-4.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-4(|) may have failed." 1>&2
+       $echo The command "cmp obs-4.O $srcdir/obs-4.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-4.E || rm -f obs-4.E
 $xx +1 < $srcdir/obs-4.I > obs-4.O 2> obs-4.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-4(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-4.O $srcdir/obs-4.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-4(<)"; fi ;;
-    1) $echo "Test obs-4(<) failed: files obs-4.O and $srcdir/obs-4.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-4(<) may have failed." 1>&2;
-       $echo The command "cmp obs-4.O $srcdir/obs-4.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-4(<)"; fi;;
+    1) $echo "Test obs-4(<) failed: files obs-4.O and $srcdir/obs-4.X differ" 1>&2
+       (diff -c obs-4.O $srcdir/obs-4.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-4(<) may have failed." 1>&2
+       $echo The command "cmp obs-4.O $srcdir/obs-4.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-4.E || rm -f obs-4.E
 $xx +2 $srcdir/obs-5.I > obs-5.O 2> obs-5.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-5(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-5.O $srcdir/obs-5.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-5(F)"; fi ;;
-    1) $echo "Test obs-5(F) failed: files obs-5.O and $srcdir/obs-5.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-5(F) may have failed." 1>&2;
-       $echo The command "cmp obs-5.O $srcdir/obs-5.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-5(F)"; fi;;
+    1) $echo "Test obs-5(F) failed: files obs-5.O and $srcdir/obs-5.X differ" 1>&2
+       (diff -c obs-5.O $srcdir/obs-5.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-5(F) may have failed." 1>&2
+       $echo The command "cmp obs-5.O $srcdir/obs-5.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-5.E || rm -f obs-5.E
 cat $srcdir/obs-5.I | $xx +2 > obs-5.O 2> obs-5.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-5(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-5.O $srcdir/obs-5.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-5(|)"; fi ;;
-    1) $echo "Test obs-5(|) failed: files obs-5.O and $srcdir/obs-5.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-5(|) may have failed." 1>&2;
-       $echo The command "cmp obs-5.O $srcdir/obs-5.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-5(|)"; fi;;
+    1) $echo "Test obs-5(|) failed: files obs-5.O and $srcdir/obs-5.X differ" 1>&2
+       (diff -c obs-5.O $srcdir/obs-5.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-5(|) may have failed." 1>&2
+       $echo The command "cmp obs-5.O $srcdir/obs-5.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-5.E || rm -f obs-5.E
 $xx +2 < $srcdir/obs-5.I > obs-5.O 2> obs-5.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-5(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-5.O $srcdir/obs-5.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-5(<)"; fi ;;
-    1) $echo "Test obs-5(<) failed: files obs-5.O and $srcdir/obs-5.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-5(<) may have failed." 1>&2;
-       $echo The command "cmp obs-5.O $srcdir/obs-5.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-5(<)"; fi;;
+    1) $echo "Test obs-5(<) failed: files obs-5.O and $srcdir/obs-5.X differ" 1>&2
+       (diff -c obs-5.O $srcdir/obs-5.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-5(<) may have failed." 1>&2
+       $echo The command "cmp obs-5.O $srcdir/obs-5.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-5.E || rm -f obs-5.E
 $xx +c $srcdir/obsx-1.I > obsx-1.O 2> obsx-1.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obsx-1(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obsx-1.O $srcdir/obsx-1.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obsx-1(F)"; fi ;;
-    1) $echo "Test obsx-1(F) failed: files obsx-1.O and $srcdir/obsx-1.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obsx-1(F) may have failed." 1>&2;
-       $echo The command "cmp obsx-1.O $srcdir/obsx-1.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obsx-1(F)"; fi;;
+    1) $echo "Test obsx-1(F) failed: files obsx-1.O and $srcdir/obsx-1.X differ" 1>&2
+       (diff -c obsx-1.O $srcdir/obsx-1.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obsx-1(F) may have failed." 1>&2
+       $echo The command "cmp obsx-1.O $srcdir/obsx-1.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obsx-1.E || rm -f obsx-1.E
 cat $srcdir/obsx-1.I | $xx +c > obsx-1.O 2> obsx-1.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obsx-1(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obsx-1.O $srcdir/obsx-1.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obsx-1(|)"; fi ;;
-    1) $echo "Test obsx-1(|) failed: files obsx-1.O and $srcdir/obsx-1.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obsx-1(|) may have failed." 1>&2;
-       $echo The command "cmp obsx-1.O $srcdir/obsx-1.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obsx-1(|)"; fi;;
+    1) $echo "Test obsx-1(|) failed: files obsx-1.O and $srcdir/obsx-1.X differ" 1>&2
+       (diff -c obsx-1.O $srcdir/obsx-1.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obsx-1(|) may have failed." 1>&2
+       $echo The command "cmp obsx-1.O $srcdir/obsx-1.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obsx-1.E || rm -f obsx-1.E
 $xx +c < $srcdir/obsx-1.I > obsx-1.O 2> obsx-1.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obsx-1(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obsx-1.O $srcdir/obsx-1.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obsx-1(<)"; fi ;;
-    1) $echo "Test obsx-1(<) failed: files obsx-1.O and $srcdir/obsx-1.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obsx-1(<) may have failed." 1>&2;
-       $echo The command "cmp obsx-1.O $srcdir/obsx-1.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obsx-1(<)"; fi;;
+    1) $echo "Test obsx-1(<) failed: files obsx-1.O and $srcdir/obsx-1.X differ" 1>&2
+       (diff -c obsx-1.O $srcdir/obsx-1.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obsx-1(<) may have failed." 1>&2
+       $echo The command "cmp obsx-1.O $srcdir/obsx-1.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obsx-1.E || rm -f obsx-1.E
 $xx +l $srcdir/obsx-2.I > obsx-2.O 2> obsx-2.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obsx-2(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obsx-2.O $srcdir/obsx-2.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obsx-2(F)"; fi ;;
-    1) $echo "Test obsx-2(F) failed: files obsx-2.O and $srcdir/obsx-2.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obsx-2(F) may have failed." 1>&2;
-       $echo The command "cmp obsx-2.O $srcdir/obsx-2.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obsx-2(F)"; fi;;
+    1) $echo "Test obsx-2(F) failed: files obsx-2.O and $srcdir/obsx-2.X differ" 1>&2
+       (diff -c obsx-2.O $srcdir/obsx-2.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obsx-2(F) may have failed." 1>&2
+       $echo The command "cmp obsx-2.O $srcdir/obsx-2.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obsx-2.E || rm -f obsx-2.E
 cat $srcdir/obsx-2.I | $xx +l > obsx-2.O 2> obsx-2.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obsx-2(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obsx-2.O $srcdir/obsx-2.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obsx-2(|)"; fi ;;
-    1) $echo "Test obsx-2(|) failed: files obsx-2.O and $srcdir/obsx-2.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obsx-2(|) may have failed." 1>&2;
-       $echo The command "cmp obsx-2.O $srcdir/obsx-2.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obsx-2(|)"; fi;;
+    1) $echo "Test obsx-2(|) failed: files obsx-2.O and $srcdir/obsx-2.X differ" 1>&2
+       (diff -c obsx-2.O $srcdir/obsx-2.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obsx-2(|) may have failed." 1>&2
+       $echo The command "cmp obsx-2.O $srcdir/obsx-2.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obsx-2.E || rm -f obsx-2.E
 $xx +l < $srcdir/obsx-2.I > obsx-2.O 2> obsx-2.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obsx-2(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obsx-2.O $srcdir/obsx-2.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obsx-2(<)"; fi ;;
-    1) $echo "Test obsx-2(<) failed: files obsx-2.O and $srcdir/obsx-2.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obsx-2(<) may have failed." 1>&2;
-       $echo The command "cmp obsx-2.O $srcdir/obsx-2.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obsx-2(<)"; fi;;
+    1) $echo "Test obsx-2(<) failed: files obsx-2.O and $srcdir/obsx-2.X differ" 1>&2
+       (diff -c obsx-2.O $srcdir/obsx-2.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obsx-2(<) may have failed." 1>&2
+       $echo The command "cmp obsx-2.O $srcdir/obsx-2.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obsx-2.E || rm -f obsx-2.E
 $xx -l $srcdir/obs-l.I > obs-l.O 2> obs-l.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-l(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-l.O $srcdir/obs-l.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-l(F)"; fi ;;
-    1) $echo "Test obs-l(F) failed: files obs-l.O and $srcdir/obs-l.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-l(F) may have failed." 1>&2;
-       $echo The command "cmp obs-l.O $srcdir/obs-l.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-l(F)"; fi;;
+    1) $echo "Test obs-l(F) failed: files obs-l.O and $srcdir/obs-l.X differ" 1>&2
+       (diff -c obs-l.O $srcdir/obs-l.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-l(F) may have failed." 1>&2
+       $echo The command "cmp obs-l.O $srcdir/obs-l.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-l.E || rm -f obs-l.E
 cat $srcdir/obs-l.I | $xx -l > obs-l.O 2> obs-l.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-l(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-l.O $srcdir/obs-l.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-l(|)"; fi ;;
-    1) $echo "Test obs-l(|) failed: files obs-l.O and $srcdir/obs-l.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-l(|) may have failed." 1>&2;
-       $echo The command "cmp obs-l.O $srcdir/obs-l.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-l(|)"; fi;;
+    1) $echo "Test obs-l(|) failed: files obs-l.O and $srcdir/obs-l.X differ" 1>&2
+       (diff -c obs-l.O $srcdir/obs-l.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-l(|) may have failed." 1>&2
+       $echo The command "cmp obs-l.O $srcdir/obs-l.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-l.E || rm -f obs-l.E
 $xx -l < $srcdir/obs-l.I > obs-l.O 2> obs-l.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test obs-l(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp obs-l.O $srcdir/obs-l.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed obs-l(<)"; fi ;;
-    1) $echo "Test obs-l(<) failed: files obs-l.O and $srcdir/obs-l.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test obs-l(<) may have failed." 1>&2;
-       $echo The command "cmp obs-l.O $srcdir/obs-l.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed obs-l(<)"; fi;;
+    1) $echo "Test obs-l(<) failed: files obs-l.O and $srcdir/obs-l.X differ" 1>&2
+       (diff -c obs-l.O $srcdir/obs-l.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test obs-l(<) may have failed." 1>&2
+       $echo The command "cmp obs-l.O $srcdir/obs-l.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s obs-l.E || rm -f obs-l.E
 $xx +cl $srcdir/err-1.I > err-1.O 2> err-1.E
 code=$?
-if test $code != 1 ; then
+if test $code != 1; then
   $echo "Test err-1(F) failed: ../../src/tail return code $code differs from expected value 1" 1>&2
   errors=`expr $errors + 1`
 else
   cmp err-1.O $srcdir/err-1.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed err-1(F)"; fi ;;
-    1) $echo "Test err-1(F) failed: files err-1.O and $srcdir/err-1.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test err-1(F) may have failed." 1>&2;
-       $echo The command "cmp err-1.O $srcdir/err-1.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed err-1(F)"; fi;;
+    1) $echo "Test err-1(F) failed: files err-1.O and $srcdir/err-1.X differ" 1>&2
+       (diff -c err-1.O $srcdir/err-1.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test err-1(F) may have failed." 1>&2
+       $echo The command "cmp err-1.O $srcdir/err-1.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s err-1.E || rm -f err-1.E
 cat $srcdir/err-1.I | $xx +cl > err-1.O 2> err-1.E
 code=$?
-if test $code != 1 ; then
+if test $code != 1; then
   $echo "Test err-1(|) failed: ../../src/tail return code $code differs from expected value 1" 1>&2
   errors=`expr $errors + 1`
 else
   cmp err-1.O $srcdir/err-1.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed err-1(|)"; fi ;;
-    1) $echo "Test err-1(|) failed: files err-1.O and $srcdir/err-1.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test err-1(|) may have failed." 1>&2;
-       $echo The command "cmp err-1.O $srcdir/err-1.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed err-1(|)"; fi;;
+    1) $echo "Test err-1(|) failed: files err-1.O and $srcdir/err-1.X differ" 1>&2
+       (diff -c err-1.O $srcdir/err-1.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test err-1(|) may have failed." 1>&2
+       $echo The command "cmp err-1.O $srcdir/err-1.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s err-1.E || rm -f err-1.E
 $xx +cl < $srcdir/err-1.I > err-1.O 2> err-1.E
 code=$?
-if test $code != 1 ; then
+if test $code != 1; then
   $echo "Test err-1(<) failed: ../../src/tail return code $code differs from expected value 1" 1>&2
   errors=`expr $errors + 1`
 else
   cmp err-1.O $srcdir/err-1.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed err-1(<)"; fi ;;
-    1) $echo "Test err-1(<) failed: files err-1.O and $srcdir/err-1.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test err-1(<) may have failed." 1>&2;
-       $echo The command "cmp err-1.O $srcdir/err-1.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed err-1(<)"; fi;;
+    1) $echo "Test err-1(<) failed: files err-1.O and $srcdir/err-1.X differ" 1>&2
+       (diff -c err-1.O $srcdir/err-1.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test err-1(<) may have failed." 1>&2
+       $echo The command "cmp err-1.O $srcdir/err-1.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s err-1.E || rm -f err-1.E
 $xx -cl $srcdir/err-2.I > err-2.O 2> err-2.E
 code=$?
-if test $code != 1 ; then
+if test $code != 1; then
   $echo "Test err-2(F) failed: ../../src/tail return code $code differs from expected value 1" 1>&2
   errors=`expr $errors + 1`
 else
   cmp err-2.O $srcdir/err-2.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed err-2(F)"; fi ;;
-    1) $echo "Test err-2(F) failed: files err-2.O and $srcdir/err-2.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test err-2(F) may have failed." 1>&2;
-       $echo The command "cmp err-2.O $srcdir/err-2.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed err-2(F)"; fi;;
+    1) $echo "Test err-2(F) failed: files err-2.O and $srcdir/err-2.X differ" 1>&2
+       (diff -c err-2.O $srcdir/err-2.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test err-2(F) may have failed." 1>&2
+       $echo The command "cmp err-2.O $srcdir/err-2.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s err-2.E || rm -f err-2.E
 cat $srcdir/err-2.I | $xx -cl > err-2.O 2> err-2.E
 code=$?
-if test $code != 1 ; then
+if test $code != 1; then
   $echo "Test err-2(|) failed: ../../src/tail return code $code differs from expected value 1" 1>&2
   errors=`expr $errors + 1`
 else
   cmp err-2.O $srcdir/err-2.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed err-2(|)"; fi ;;
-    1) $echo "Test err-2(|) failed: files err-2.O and $srcdir/err-2.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test err-2(|) may have failed." 1>&2;
-       $echo The command "cmp err-2.O $srcdir/err-2.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed err-2(|)"; fi;;
+    1) $echo "Test err-2(|) failed: files err-2.O and $srcdir/err-2.X differ" 1>&2
+       (diff -c err-2.O $srcdir/err-2.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test err-2(|) may have failed." 1>&2
+       $echo The command "cmp err-2.O $srcdir/err-2.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s err-2.E || rm -f err-2.E
 $xx -cl < $srcdir/err-2.I > err-2.O 2> err-2.E
 code=$?
-if test $code != 1 ; then
+if test $code != 1; then
   $echo "Test err-2(<) failed: ../../src/tail return code $code differs from expected value 1" 1>&2
   errors=`expr $errors + 1`
 else
   cmp err-2.O $srcdir/err-2.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed err-2(<)"; fi ;;
-    1) $echo "Test err-2(<) failed: files err-2.O and $srcdir/err-2.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test err-2(<) may have failed." 1>&2;
-       $echo The command "cmp err-2.O $srcdir/err-2.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed err-2(<)"; fi;;
+    1) $echo "Test err-2(<) failed: files err-2.O and $srcdir/err-2.X differ" 1>&2
+       (diff -c err-2.O $srcdir/err-2.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test err-2(<) may have failed." 1>&2
+       $echo The command "cmp err-2.O $srcdir/err-2.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s err-2.E || rm -f err-2.E
 $xx +2cz $srcdir/err-3.I > err-3.O 2> err-3.E
 code=$?
-if test $code != 1 ; then
+if test $code != 1; then
   $echo "Test err-3(F) failed: ../../src/tail return code $code differs from expected value 1" 1>&2
   errors=`expr $errors + 1`
 else
   cmp err-3.O $srcdir/err-3.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed err-3(F)"; fi ;;
-    1) $echo "Test err-3(F) failed: files err-3.O and $srcdir/err-3.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test err-3(F) may have failed." 1>&2;
-       $echo The command "cmp err-3.O $srcdir/err-3.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed err-3(F)"; fi;;
+    1) $echo "Test err-3(F) failed: files err-3.O and $srcdir/err-3.X differ" 1>&2
+       (diff -c err-3.O $srcdir/err-3.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test err-3(F) may have failed." 1>&2
+       $echo The command "cmp err-3.O $srcdir/err-3.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s err-3.E || rm -f err-3.E
 cat $srcdir/err-3.I | $xx +2cz > err-3.O 2> err-3.E
 code=$?
-if test $code != 1 ; then
+if test $code != 1; then
   $echo "Test err-3(|) failed: ../../src/tail return code $code differs from expected value 1" 1>&2
   errors=`expr $errors + 1`
 else
   cmp err-3.O $srcdir/err-3.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed err-3(|)"; fi ;;
-    1) $echo "Test err-3(|) failed: files err-3.O and $srcdir/err-3.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test err-3(|) may have failed." 1>&2;
-       $echo The command "cmp err-3.O $srcdir/err-3.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed err-3(|)"; fi;;
+    1) $echo "Test err-3(|) failed: files err-3.O and $srcdir/err-3.X differ" 1>&2
+       (diff -c err-3.O $srcdir/err-3.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test err-3(|) may have failed." 1>&2
+       $echo The command "cmp err-3.O $srcdir/err-3.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s err-3.E || rm -f err-3.E
 $xx +2cz < $srcdir/err-3.I > err-3.O 2> err-3.E
 code=$?
-if test $code != 1 ; then
+if test $code != 1; then
   $echo "Test err-3(<) failed: ../../src/tail return code $code differs from expected value 1" 1>&2
   errors=`expr $errors + 1`
 else
   cmp err-3.O $srcdir/err-3.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed err-3(<)"; fi ;;
-    1) $echo "Test err-3(<) failed: files err-3.O and $srcdir/err-3.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test err-3(<) may have failed." 1>&2;
-       $echo The command "cmp err-3.O $srcdir/err-3.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed err-3(<)"; fi;;
+    1) $echo "Test err-3(<) failed: files err-3.O and $srcdir/err-3.X differ" 1>&2
+       (diff -c err-3.O $srcdir/err-3.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test err-3(<) may have failed." 1>&2
+       $echo The command "cmp err-3.O $srcdir/err-3.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s err-3.E || rm -f err-3.E
 $xx -2cX $srcdir/err-4.I > err-4.O 2> err-4.E
 code=$?
-if test $code != 1 ; then
+if test $code != 1; then
   $echo "Test err-4(F) failed: ../../src/tail return code $code differs from expected value 1" 1>&2
   errors=`expr $errors + 1`
 else
   cmp err-4.O $srcdir/err-4.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed err-4(F)"; fi ;;
-    1) $echo "Test err-4(F) failed: files err-4.O and $srcdir/err-4.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test err-4(F) may have failed." 1>&2;
-       $echo The command "cmp err-4.O $srcdir/err-4.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed err-4(F)"; fi;;
+    1) $echo "Test err-4(F) failed: files err-4.O and $srcdir/err-4.X differ" 1>&2
+       (diff -c err-4.O $srcdir/err-4.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test err-4(F) may have failed." 1>&2
+       $echo The command "cmp err-4.O $srcdir/err-4.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s err-4.E || rm -f err-4.E
 cat $srcdir/err-4.I | $xx -2cX > err-4.O 2> err-4.E
 code=$?
-if test $code != 1 ; then
+if test $code != 1; then
   $echo "Test err-4(|) failed: ../../src/tail return code $code differs from expected value 1" 1>&2
   errors=`expr $errors + 1`
 else
   cmp err-4.O $srcdir/err-4.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed err-4(|)"; fi ;;
-    1) $echo "Test err-4(|) failed: files err-4.O and $srcdir/err-4.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test err-4(|) may have failed." 1>&2;
-       $echo The command "cmp err-4.O $srcdir/err-4.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed err-4(|)"; fi;;
+    1) $echo "Test err-4(|) failed: files err-4.O and $srcdir/err-4.X differ" 1>&2
+       (diff -c err-4.O $srcdir/err-4.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test err-4(|) may have failed." 1>&2
+       $echo The command "cmp err-4.O $srcdir/err-4.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s err-4.E || rm -f err-4.E
 $xx -2cX < $srcdir/err-4.I > err-4.O 2> err-4.E
 code=$?
-if test $code != 1 ; then
+if test $code != 1; then
   $echo "Test err-4(<) failed: ../../src/tail return code $code differs from expected value 1" 1>&2
   errors=`expr $errors + 1`
 else
   cmp err-4.O $srcdir/err-4.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed err-4(<)"; fi ;;
-    1) $echo "Test err-4(<) failed: files err-4.O and $srcdir/err-4.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test err-4(<) may have failed." 1>&2;
-       $echo The command "cmp err-4.O $srcdir/err-4.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed err-4(<)"; fi;;
+    1) $echo "Test err-4(<) failed: files err-4.O and $srcdir/err-4.X differ" 1>&2
+       (diff -c err-4.O $srcdir/err-4.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test err-4(<) may have failed." 1>&2
+       $echo The command "cmp err-4.O $srcdir/err-4.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s err-4.E || rm -f err-4.E
 $xx -c99999999999999999999 $srcdir/err-5.I > err-5.O 2> err-5.E
 code=$?
-if test $code != 1 ; then
+if test $code != 1; then
   $echo "Test err-5(F) failed: ../../src/tail return code $code differs from expected value 1" 1>&2
   errors=`expr $errors + 1`
 else
   cmp err-5.O $srcdir/err-5.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed err-5(F)"; fi ;;
-    1) $echo "Test err-5(F) failed: files err-5.O and $srcdir/err-5.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test err-5(F) may have failed." 1>&2;
-       $echo The command "cmp err-5.O $srcdir/err-5.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed err-5(F)"; fi;;
+    1) $echo "Test err-5(F) failed: files err-5.O and $srcdir/err-5.X differ" 1>&2
+       (diff -c err-5.O $srcdir/err-5.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test err-5(F) may have failed." 1>&2
+       $echo The command "cmp err-5.O $srcdir/err-5.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s err-5.E || rm -f err-5.E
 cat $srcdir/err-5.I | $xx -c99999999999999999999 > err-5.O 2> err-5.E
 code=$?
-if test $code != 1 ; then
+if test $code != 1; then
   $echo "Test err-5(|) failed: ../../src/tail return code $code differs from expected value 1" 1>&2
   errors=`expr $errors + 1`
 else
   cmp err-5.O $srcdir/err-5.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed err-5(|)"; fi ;;
-    1) $echo "Test err-5(|) failed: files err-5.O and $srcdir/err-5.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test err-5(|) may have failed." 1>&2;
-       $echo The command "cmp err-5.O $srcdir/err-5.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed err-5(|)"; fi;;
+    1) $echo "Test err-5(|) failed: files err-5.O and $srcdir/err-5.X differ" 1>&2
+       (diff -c err-5.O $srcdir/err-5.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test err-5(|) may have failed." 1>&2
+       $echo The command "cmp err-5.O $srcdir/err-5.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s err-5.E || rm -f err-5.E
 $xx -c99999999999999999999 < $srcdir/err-5.I > err-5.O 2> err-5.E
 code=$?
-if test $code != 1 ; then
+if test $code != 1; then
   $echo "Test err-5(<) failed: ../../src/tail return code $code differs from expected value 1" 1>&2
   errors=`expr $errors + 1`
 else
   cmp err-5.O $srcdir/err-5.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed err-5(<)"; fi ;;
-    1) $echo "Test err-5(<) failed: files err-5.O and $srcdir/err-5.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test err-5(<) may have failed." 1>&2;
-       $echo The command "cmp err-5.O $srcdir/err-5.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed err-5(<)"; fi;;
+    1) $echo "Test err-5(<) failed: files err-5.O and $srcdir/err-5.X differ" 1>&2
+       (diff -c err-5.O $srcdir/err-5.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test err-5(<) may have failed." 1>&2
+       $echo The command "cmp err-5.O $srcdir/err-5.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s err-5.E || rm -f err-5.E
 $xx -c $srcdir/err-6.I > err-6.O 2> err-6.E
 code=$?
-if test $code != 1 ; then
+if test $code != 1; then
   $echo "Test err-6(F) failed: ../../src/tail return code $code differs from expected value 1" 1>&2
   errors=`expr $errors + 1`
 else
   cmp err-6.O $srcdir/err-6.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed err-6(F)"; fi ;;
-    1) $echo "Test err-6(F) failed: files err-6.O and $srcdir/err-6.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test err-6(F) may have failed." 1>&2;
-       $echo The command "cmp err-6.O $srcdir/err-6.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed err-6(F)"; fi;;
+    1) $echo "Test err-6(F) failed: files err-6.O and $srcdir/err-6.X differ" 1>&2
+       (diff -c err-6.O $srcdir/err-6.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test err-6(F) may have failed." 1>&2
+       $echo The command "cmp err-6.O $srcdir/err-6.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s err-6.E || rm -f err-6.E
 cat $srcdir/err-6.I | $xx -c > err-6.O 2> err-6.E
 code=$?
-if test $code != 1 ; then
+if test $code != 1; then
   $echo "Test err-6(|) failed: ../../src/tail return code $code differs from expected value 1" 1>&2
   errors=`expr $errors + 1`
 else
   cmp err-6.O $srcdir/err-6.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed err-6(|)"; fi ;;
-    1) $echo "Test err-6(|) failed: files err-6.O and $srcdir/err-6.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test err-6(|) may have failed." 1>&2;
-       $echo The command "cmp err-6.O $srcdir/err-6.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed err-6(|)"; fi;;
+    1) $echo "Test err-6(|) failed: files err-6.O and $srcdir/err-6.X differ" 1>&2
+       (diff -c err-6.O $srcdir/err-6.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test err-6(|) may have failed." 1>&2
+       $echo The command "cmp err-6.O $srcdir/err-6.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s err-6.E || rm -f err-6.E
 $xx -c < $srcdir/err-6.I > err-6.O 2> err-6.E
 code=$?
-if test $code != 1 ; then
+if test $code != 1; then
   $echo "Test err-6(<) failed: ../../src/tail return code $code differs from expected value 1" 1>&2
   errors=`expr $errors + 1`
 else
   cmp err-6.O $srcdir/err-6.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed err-6(<)"; fi ;;
-    1) $echo "Test err-6(<) failed: files err-6.O and $srcdir/err-6.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test err-6(<) may have failed." 1>&2;
-       $echo The command "cmp err-6.O $srcdir/err-6.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed err-6(<)"; fi;;
+    1) $echo "Test err-6(<) failed: files err-6.O and $srcdir/err-6.X differ" 1>&2
+       (diff -c err-6.O $srcdir/err-6.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test err-6(<) may have failed." 1>&2
+       $echo The command "cmp err-6.O $srcdir/err-6.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s err-6.E || rm -f err-6.E
 cat $srcdir/minus-1.I | $xx - > minus-1.O 2> minus-1.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test minus-1(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp minus-1.O $srcdir/minus-1.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed minus-1(|)"; fi ;;
-    1) $echo "Test minus-1(|) failed: files minus-1.O and $srcdir/minus-1.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test minus-1(|) may have failed." 1>&2;
-       $echo The command "cmp minus-1.O $srcdir/minus-1.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed minus-1(|)"; fi;;
+    1) $echo "Test minus-1(|) failed: files minus-1.O and $srcdir/minus-1.X differ" 1>&2
+       (diff -c minus-1.O $srcdir/minus-1.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test minus-1(|) may have failed." 1>&2
+       $echo The command "cmp minus-1.O $srcdir/minus-1.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s minus-1.E || rm -f minus-1.E
 $xx - < $srcdir/minus-1.I > minus-1.O 2> minus-1.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test minus-1(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp minus-1.O $srcdir/minus-1.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed minus-1(<)"; fi ;;
-    1) $echo "Test minus-1(<) failed: files minus-1.O and $srcdir/minus-1.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test minus-1(<) may have failed." 1>&2;
-       $echo The command "cmp minus-1.O $srcdir/minus-1.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed minus-1(<)"; fi;;
+    1) $echo "Test minus-1(<) failed: files minus-1.O and $srcdir/minus-1.X differ" 1>&2
+       (diff -c minus-1.O $srcdir/minus-1.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test minus-1(<) may have failed." 1>&2
+       $echo The command "cmp minus-1.O $srcdir/minus-1.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s minus-1.E || rm -f minus-1.E
 cat $srcdir/minus-2.I | $xx - > minus-2.O 2> minus-2.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test minus-2(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp minus-2.O $srcdir/minus-2.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed minus-2(|)"; fi ;;
-    1) $echo "Test minus-2(|) failed: files minus-2.O and $srcdir/minus-2.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test minus-2(|) may have failed." 1>&2;
-       $echo The command "cmp minus-2.O $srcdir/minus-2.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed minus-2(|)"; fi;;
+    1) $echo "Test minus-2(|) failed: files minus-2.O and $srcdir/minus-2.X differ" 1>&2
+       (diff -c minus-2.O $srcdir/minus-2.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test minus-2(|) may have failed." 1>&2
+       $echo The command "cmp minus-2.O $srcdir/minus-2.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s minus-2.E || rm -f minus-2.E
 $xx - < $srcdir/minus-2.I > minus-2.O 2> minus-2.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test minus-2(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp minus-2.O $srcdir/minus-2.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed minus-2(<)"; fi ;;
-    1) $echo "Test minus-2(<) failed: files minus-2.O and $srcdir/minus-2.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test minus-2(<) may have failed." 1>&2;
-       $echo The command "cmp minus-2.O $srcdir/minus-2.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed minus-2(<)"; fi;;
+    1) $echo "Test minus-2(<) failed: files minus-2.O and $srcdir/minus-2.X differ" 1>&2
+       (diff -c minus-2.O $srcdir/minus-2.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test minus-2(<) may have failed." 1>&2
+       $echo The command "cmp minus-2.O $srcdir/minus-2.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s minus-2.E || rm -f minus-2.E
 $xx -n 10 $srcdir/n-1.I > n-1.O 2> n-1.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-1(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-1.O $srcdir/n-1.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-1(F)"; fi ;;
-    1) $echo "Test n-1(F) failed: files n-1.O and $srcdir/n-1.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-1(F) may have failed." 1>&2;
-       $echo The command "cmp n-1.O $srcdir/n-1.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-1(F)"; fi;;
+    1) $echo "Test n-1(F) failed: files n-1.O and $srcdir/n-1.X differ" 1>&2
+       (diff -c n-1.O $srcdir/n-1.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-1(F) may have failed." 1>&2
+       $echo The command "cmp n-1.O $srcdir/n-1.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-1.E || rm -f n-1.E
 cat $srcdir/n-1.I | $xx -n 10 > n-1.O 2> n-1.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-1(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-1.O $srcdir/n-1.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-1(|)"; fi ;;
-    1) $echo "Test n-1(|) failed: files n-1.O and $srcdir/n-1.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-1(|) may have failed." 1>&2;
-       $echo The command "cmp n-1.O $srcdir/n-1.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-1(|)"; fi;;
+    1) $echo "Test n-1(|) failed: files n-1.O and $srcdir/n-1.X differ" 1>&2
+       (diff -c n-1.O $srcdir/n-1.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-1(|) may have failed." 1>&2
+       $echo The command "cmp n-1.O $srcdir/n-1.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-1.E || rm -f n-1.E
 $xx -n 10 < $srcdir/n-1.I > n-1.O 2> n-1.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-1(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-1.O $srcdir/n-1.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-1(<)"; fi ;;
-    1) $echo "Test n-1(<) failed: files n-1.O and $srcdir/n-1.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-1(<) may have failed." 1>&2;
-       $echo The command "cmp n-1.O $srcdir/n-1.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-1(<)"; fi;;
+    1) $echo "Test n-1(<) failed: files n-1.O and $srcdir/n-1.X differ" 1>&2
+       (diff -c n-1.O $srcdir/n-1.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-1(<) may have failed." 1>&2
+       $echo The command "cmp n-1.O $srcdir/n-1.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-1.E || rm -f n-1.E
 $xx -n -10 $srcdir/n-2.I > n-2.O 2> n-2.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-2(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-2.O $srcdir/n-2.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-2(F)"; fi ;;
-    1) $echo "Test n-2(F) failed: files n-2.O and $srcdir/n-2.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-2(F) may have failed." 1>&2;
-       $echo The command "cmp n-2.O $srcdir/n-2.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-2(F)"; fi;;
+    1) $echo "Test n-2(F) failed: files n-2.O and $srcdir/n-2.X differ" 1>&2
+       (diff -c n-2.O $srcdir/n-2.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-2(F) may have failed." 1>&2
+       $echo The command "cmp n-2.O $srcdir/n-2.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-2.E || rm -f n-2.E
 cat $srcdir/n-2.I | $xx -n -10 > n-2.O 2> n-2.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-2(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-2.O $srcdir/n-2.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-2(|)"; fi ;;
-    1) $echo "Test n-2(|) failed: files n-2.O and $srcdir/n-2.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-2(|) may have failed." 1>&2;
-       $echo The command "cmp n-2.O $srcdir/n-2.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-2(|)"; fi;;
+    1) $echo "Test n-2(|) failed: files n-2.O and $srcdir/n-2.X differ" 1>&2
+       (diff -c n-2.O $srcdir/n-2.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-2(|) may have failed." 1>&2
+       $echo The command "cmp n-2.O $srcdir/n-2.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-2.E || rm -f n-2.E
 $xx -n -10 < $srcdir/n-2.I > n-2.O 2> n-2.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-2(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-2.O $srcdir/n-2.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-2(<)"; fi ;;
-    1) $echo "Test n-2(<) failed: files n-2.O and $srcdir/n-2.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-2(<) may have failed." 1>&2;
-       $echo The command "cmp n-2.O $srcdir/n-2.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-2(<)"; fi;;
+    1) $echo "Test n-2(<) failed: files n-2.O and $srcdir/n-2.X differ" 1>&2
+       (diff -c n-2.O $srcdir/n-2.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-2(<) may have failed." 1>&2
+       $echo The command "cmp n-2.O $srcdir/n-2.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-2.E || rm -f n-2.E
 $xx -n +10 $srcdir/n-3.I > n-3.O 2> n-3.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-3(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-3.O $srcdir/n-3.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-3(F)"; fi ;;
-    1) $echo "Test n-3(F) failed: files n-3.O and $srcdir/n-3.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-3(F) may have failed." 1>&2;
-       $echo The command "cmp n-3.O $srcdir/n-3.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-3(F)"; fi;;
+    1) $echo "Test n-3(F) failed: files n-3.O and $srcdir/n-3.X differ" 1>&2
+       (diff -c n-3.O $srcdir/n-3.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-3(F) may have failed." 1>&2
+       $echo The command "cmp n-3.O $srcdir/n-3.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-3.E || rm -f n-3.E
 cat $srcdir/n-3.I | $xx -n +10 > n-3.O 2> n-3.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-3(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-3.O $srcdir/n-3.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-3(|)"; fi ;;
-    1) $echo "Test n-3(|) failed: files n-3.O and $srcdir/n-3.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-3(|) may have failed." 1>&2;
-       $echo The command "cmp n-3.O $srcdir/n-3.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-3(|)"; fi;;
+    1) $echo "Test n-3(|) failed: files n-3.O and $srcdir/n-3.X differ" 1>&2
+       (diff -c n-3.O $srcdir/n-3.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-3(|) may have failed." 1>&2
+       $echo The command "cmp n-3.O $srcdir/n-3.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-3.E || rm -f n-3.E
 $xx -n +10 < $srcdir/n-3.I > n-3.O 2> n-3.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-3(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-3.O $srcdir/n-3.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-3(<)"; fi ;;
-    1) $echo "Test n-3(<) failed: files n-3.O and $srcdir/n-3.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-3(<) may have failed." 1>&2;
-       $echo The command "cmp n-3.O $srcdir/n-3.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-3(<)"; fi;;
+    1) $echo "Test n-3(<) failed: files n-3.O and $srcdir/n-3.X differ" 1>&2
+       (diff -c n-3.O $srcdir/n-3.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-3(<) may have failed." 1>&2
+       $echo The command "cmp n-3.O $srcdir/n-3.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-3.E || rm -f n-3.E
 $xx -n +0 $srcdir/n-4.I > n-4.O 2> n-4.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-4(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-4.O $srcdir/n-4.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-4(F)"; fi ;;
-    1) $echo "Test n-4(F) failed: files n-4.O and $srcdir/n-4.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-4(F) may have failed." 1>&2;
-       $echo The command "cmp n-4.O $srcdir/n-4.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-4(F)"; fi;;
+    1) $echo "Test n-4(F) failed: files n-4.O and $srcdir/n-4.X differ" 1>&2
+       (diff -c n-4.O $srcdir/n-4.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-4(F) may have failed." 1>&2
+       $echo The command "cmp n-4.O $srcdir/n-4.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-4.E || rm -f n-4.E
 cat $srcdir/n-4.I | $xx -n +0 > n-4.O 2> n-4.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-4(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-4.O $srcdir/n-4.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-4(|)"; fi ;;
-    1) $echo "Test n-4(|) failed: files n-4.O and $srcdir/n-4.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-4(|) may have failed." 1>&2;
-       $echo The command "cmp n-4.O $srcdir/n-4.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-4(|)"; fi;;
+    1) $echo "Test n-4(|) failed: files n-4.O and $srcdir/n-4.X differ" 1>&2
+       (diff -c n-4.O $srcdir/n-4.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-4(|) may have failed." 1>&2
+       $echo The command "cmp n-4.O $srcdir/n-4.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-4.E || rm -f n-4.E
 $xx -n +0 < $srcdir/n-4.I > n-4.O 2> n-4.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-4(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-4.O $srcdir/n-4.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-4(<)"; fi ;;
-    1) $echo "Test n-4(<) failed: files n-4.O and $srcdir/n-4.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-4(<) may have failed." 1>&2;
-       $echo The command "cmp n-4.O $srcdir/n-4.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-4(<)"; fi;;
+    1) $echo "Test n-4(<) failed: files n-4.O and $srcdir/n-4.X differ" 1>&2
+       (diff -c n-4.O $srcdir/n-4.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-4(<) may have failed." 1>&2
+       $echo The command "cmp n-4.O $srcdir/n-4.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-4.E || rm -f n-4.E
 $xx -n +1 $srcdir/n-4a.I > n-4a.O 2> n-4a.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-4a(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-4a.O $srcdir/n-4a.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-4a(F)"; fi ;;
-    1) $echo "Test n-4a(F) failed: files n-4a.O and $srcdir/n-4a.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-4a(F) may have failed." 1>&2;
-       $echo The command "cmp n-4a.O $srcdir/n-4a.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-4a(F)"; fi;;
+    1) $echo "Test n-4a(F) failed: files n-4a.O and $srcdir/n-4a.X differ" 1>&2
+       (diff -c n-4a.O $srcdir/n-4a.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-4a(F) may have failed." 1>&2
+       $echo The command "cmp n-4a.O $srcdir/n-4a.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-4a.E || rm -f n-4a.E
 cat $srcdir/n-4a.I | $xx -n +1 > n-4a.O 2> n-4a.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-4a(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-4a.O $srcdir/n-4a.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-4a(|)"; fi ;;
-    1) $echo "Test n-4a(|) failed: files n-4a.O and $srcdir/n-4a.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-4a(|) may have failed." 1>&2;
-       $echo The command "cmp n-4a.O $srcdir/n-4a.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-4a(|)"; fi;;
+    1) $echo "Test n-4a(|) failed: files n-4a.O and $srcdir/n-4a.X differ" 1>&2
+       (diff -c n-4a.O $srcdir/n-4a.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-4a(|) may have failed." 1>&2
+       $echo The command "cmp n-4a.O $srcdir/n-4a.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-4a.E || rm -f n-4a.E
 $xx -n +1 < $srcdir/n-4a.I > n-4a.O 2> n-4a.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-4a(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-4a.O $srcdir/n-4a.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-4a(<)"; fi ;;
-    1) $echo "Test n-4a(<) failed: files n-4a.O and $srcdir/n-4a.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-4a(<) may have failed." 1>&2;
-       $echo The command "cmp n-4a.O $srcdir/n-4a.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-4a(<)"; fi;;
+    1) $echo "Test n-4a(<) failed: files n-4a.O and $srcdir/n-4a.X differ" 1>&2
+       (diff -c n-4a.O $srcdir/n-4a.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-4a(<) may have failed." 1>&2
+       $echo The command "cmp n-4a.O $srcdir/n-4a.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-4a.E || rm -f n-4a.E
 $xx -n -0 $srcdir/n-5.I > n-5.O 2> n-5.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-5(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-5.O $srcdir/n-5.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-5(F)"; fi ;;
-    1) $echo "Test n-5(F) failed: files n-5.O and $srcdir/n-5.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-5(F) may have failed." 1>&2;
-       $echo The command "cmp n-5.O $srcdir/n-5.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-5(F)"; fi;;
+    1) $echo "Test n-5(F) failed: files n-5.O and $srcdir/n-5.X differ" 1>&2
+       (diff -c n-5.O $srcdir/n-5.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-5(F) may have failed." 1>&2
+       $echo The command "cmp n-5.O $srcdir/n-5.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-5.E || rm -f n-5.E
 cat $srcdir/n-5.I | $xx -n -0 > n-5.O 2> n-5.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-5(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-5.O $srcdir/n-5.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-5(|)"; fi ;;
-    1) $echo "Test n-5(|) failed: files n-5.O and $srcdir/n-5.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-5(|) may have failed." 1>&2;
-       $echo The command "cmp n-5.O $srcdir/n-5.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-5(|)"; fi;;
+    1) $echo "Test n-5(|) failed: files n-5.O and $srcdir/n-5.X differ" 1>&2
+       (diff -c n-5.O $srcdir/n-5.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-5(|) may have failed." 1>&2
+       $echo The command "cmp n-5.O $srcdir/n-5.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-5.E || rm -f n-5.E
 $xx -n -0 < $srcdir/n-5.I > n-5.O 2> n-5.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-5(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-5.O $srcdir/n-5.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-5(<)"; fi ;;
-    1) $echo "Test n-5(<) failed: files n-5.O and $srcdir/n-5.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-5(<) may have failed." 1>&2;
-       $echo The command "cmp n-5.O $srcdir/n-5.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-5(<)"; fi;;
+    1) $echo "Test n-5(<) failed: files n-5.O and $srcdir/n-5.X differ" 1>&2
+       (diff -c n-5.O $srcdir/n-5.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-5(<) may have failed." 1>&2
+       $echo The command "cmp n-5.O $srcdir/n-5.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-5.E || rm -f n-5.E
 $xx -n -1 $srcdir/n-5a.I > n-5a.O 2> n-5a.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-5a(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-5a.O $srcdir/n-5a.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-5a(F)"; fi ;;
-    1) $echo "Test n-5a(F) failed: files n-5a.O and $srcdir/n-5a.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-5a(F) may have failed." 1>&2;
-       $echo The command "cmp n-5a.O $srcdir/n-5a.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-5a(F)"; fi;;
+    1) $echo "Test n-5a(F) failed: files n-5a.O and $srcdir/n-5a.X differ" 1>&2
+       (diff -c n-5a.O $srcdir/n-5a.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-5a(F) may have failed." 1>&2
+       $echo The command "cmp n-5a.O $srcdir/n-5a.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-5a.E || rm -f n-5a.E
 cat $srcdir/n-5a.I | $xx -n -1 > n-5a.O 2> n-5a.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-5a(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-5a.O $srcdir/n-5a.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-5a(|)"; fi ;;
-    1) $echo "Test n-5a(|) failed: files n-5a.O and $srcdir/n-5a.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-5a(|) may have failed." 1>&2;
-       $echo The command "cmp n-5a.O $srcdir/n-5a.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-5a(|)"; fi;;
+    1) $echo "Test n-5a(|) failed: files n-5a.O and $srcdir/n-5a.X differ" 1>&2
+       (diff -c n-5a.O $srcdir/n-5a.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-5a(|) may have failed." 1>&2
+       $echo The command "cmp n-5a.O $srcdir/n-5a.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-5a.E || rm -f n-5a.E
 $xx -n -1 < $srcdir/n-5a.I > n-5a.O 2> n-5a.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-5a(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-5a.O $srcdir/n-5a.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-5a(<)"; fi ;;
-    1) $echo "Test n-5a(<) failed: files n-5a.O and $srcdir/n-5a.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-5a(<) may have failed." 1>&2;
-       $echo The command "cmp n-5a.O $srcdir/n-5a.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-5a(<)"; fi;;
+    1) $echo "Test n-5a(<) failed: files n-5a.O and $srcdir/n-5a.X differ" 1>&2
+       (diff -c n-5a.O $srcdir/n-5a.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-5a(<) may have failed." 1>&2
+       $echo The command "cmp n-5a.O $srcdir/n-5a.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-5a.E || rm -f n-5a.E
 $xx -n  0 $srcdir/n-5b.I > n-5b.O 2> n-5b.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-5b(F) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-5b.O $srcdir/n-5b.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-5b(F)"; fi ;;
-    1) $echo "Test n-5b(F) failed: files n-5b.O and $srcdir/n-5b.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-5b(F) may have failed." 1>&2;
-       $echo The command "cmp n-5b.O $srcdir/n-5b.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-5b(F)"; fi;;
+    1) $echo "Test n-5b(F) failed: files n-5b.O and $srcdir/n-5b.X differ" 1>&2
+       (diff -c n-5b.O $srcdir/n-5b.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-5b(F) may have failed." 1>&2
+       $echo The command "cmp n-5b.O $srcdir/n-5b.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-5b.E || rm -f n-5b.E
 cat $srcdir/n-5b.I | $xx -n  0 > n-5b.O 2> n-5b.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-5b(|) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-5b.O $srcdir/n-5b.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-5b(|)"; fi ;;
-    1) $echo "Test n-5b(|) failed: files n-5b.O and $srcdir/n-5b.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-5b(|) may have failed." 1>&2;
-       $echo The command "cmp n-5b.O $srcdir/n-5b.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-5b(|)"; fi;;
+    1) $echo "Test n-5b(|) failed: files n-5b.O and $srcdir/n-5b.X differ" 1>&2
+       (diff -c n-5b.O $srcdir/n-5b.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-5b(|) may have failed." 1>&2
+       $echo The command "cmp n-5b.O $srcdir/n-5b.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-5b.E || rm -f n-5b.E
 $xx -n  0 < $srcdir/n-5b.I > n-5b.O 2> n-5b.E
 code=$?
-if test $code != 0 ; then
+if test $code != 0; then
   $echo "Test n-5b(<) failed: ../../src/tail return code $code differs from expected value 0" 1>&2
   errors=`expr $errors + 1`
 else
   cmp n-5b.O $srcdir/n-5b.X > /dev/null 2>&1
   case $? in
-    0) if test "$VERBOSE" ; then $echo "passed n-5b(<)"; fi ;;
-    1) $echo "Test n-5b(<) failed: files n-5b.O and $srcdir/n-5b.X differ" 1>&2;
-       errors=`expr $errors + 1` ;;
-    2) $echo "Test n-5b(<) may have failed." 1>&2;
-       $echo The command "cmp n-5b.O $srcdir/n-5b.X" failed. 1>&2 ;
-       errors=`expr $errors + 1` ;;
+    0) if test "$VERBOSE"; then $echo "passed n-5b(<)"; fi;;
+    1) $echo "Test n-5b(<) failed: files n-5b.O and $srcdir/n-5b.X differ" 1>&2
+       (diff -c n-5b.O $srcdir/n-5b.X) 2> /dev/null
+       errors=`expr $errors + 1`;;
+    2) $echo "Test n-5b(<) may have failed." 1>&2
+       $echo The command "cmp n-5b.O $srcdir/n-5b.X" failed. 1>&2
+       errors=`expr $errors + 1`;;
   esac
 fi
 test -s n-5b.E || rm -f n-5b.E
-if test $errors = 0 ; then
+if test $errors = 0; then
   $echo Passed all 100 tests. 1>&2
 else
   $echo Failed $errors tests. 1>&2