tests: adjust \`...' quoting to '...' to adapt to latest gnulib

Run this:
  git grep -l "\\\\\`[^']*'" tests \
    |xargs perl -pi -e 's/\\\`(.*?'\'')/'\''$1/g

2 files changed, 3 insertions, 3 deletions

diff --git a/tests/dd/skip-seek-past-dev b/tests/dd/skip-seek-past-dev
index a8e0a2f72..f4184b1bf 100755
--- a/tests/dd/skip-seek-past-dev
+++ b/tests/dd/skip-seek-past-dev
@@ -43,14 +43,14 @@ DEV_OFLOW=$(expr $dev_size + 1)
 
 timeout 10 dd bs=1 skip=$DEV_OFLOW count=0 status=noxfer < "$device" 2> err
 test "$?" = "1" || fail=1
-echo "dd: \`standard input': cannot skip: Invalid argument
+echo "dd: 'standard input': cannot skip: Invalid argument
 0+0 records in
 0+0 records out" > err_ok || framework_failure_
 compare err_ok err || fail=1
 
 timeout 10 dd bs=1 seek=$DEV_OFLOW count=0 status=noxfer > "$device" 2> err
 test "$?" = "1" || fail=1
-echo "dd: \`standard output': cannot seek: Invalid argument
+echo "dd: 'standard output': cannot seek: Invalid argument
 0+0 records in
 0+0 records out" > err_ok || framework_failure_
 compare err_ok err || fail=1
diff --git a/tests/dd/skip-seek-past-file b/tests/dd/skip-seek-past-file
index 46d915645..ea8f1c9af 100755
--- a/tests/dd/skip-seek-past-file
+++ b/tests/dd/skip-seek-past-file
@@ -25,7 +25,7 @@ eval $(getlimits) # for OFF_T limits
 printf "1234" > file || framework_failure_
 
 echo "\
-dd: \`standard input': cannot skip to specified offset
+dd: 'standard input': cannot skip to specified offset
 0+0 records in
 0+0 records out" > skip_err || framework_failure_