3 files changed, 7 insertions, 7 deletions
diff --git a/tests/du/files0-from-dir.sh b/tests/du/files0-from-dir.sh
index 2f55c4ed6..4d7e90cf5 100755
--- a/tests/du/files0-from-dir.sh
+++ b/tests/du/files0-from-dir.sh
@@ -29,10 +29,10 @@ cat dir > /dev/null && skip_ "cat dir/ succeeds"
 
 for prog in du wc; do
   $prog --files0-from=dir > /dev/null 2>err && fail=1
-  printf "$prog: dir:\n" > exp || fail=1
+  printf "$prog: 'dir':\n" > exp || fail=1
   # The diagnostic string is usually "Is a directory" (ENOTDIR),
   # but accept a different string or errno value.
-  sed 's/dir:.*/dir:/' err > k; mv k err
+  sed "s/'dir':.*/'dir':/" err > k; mv k err
   compare exp err || fail=1
 done
 
diff --git a/tests/du/files0-from.pl b/tests/du/files0-from.pl
index 3854059f0..f0177a2d0 100755
--- a/tests/du/files0-from.pl
+++ b/tests/du/files0-from.pl
@@ -53,12 +53,12 @@ my @Tests =
 
    # one NUL
    ['nul-1', '--files0-from=-', '<', {IN=>"\0"}, {EXIT=>1},
-    {ERR => "$prog: -:1: invalid zero-length file name\n"}],
+    {ERR => "$prog: '-':1: invalid zero-length file name\n"}],
 
    # two NULs
    ['nul-2', '--files0-from=-', '<', {IN=>"\0\0"}, {EXIT=>1},
-    {ERR => "$prog: -:1: invalid zero-length file name\n"
-          . "$prog: -:2: invalid zero-length file name\n"}],
+    {ERR => "$prog: '-':1: invalid zero-length file name\n"
+          . "$prog: '-':2: invalid zero-length file name\n"}],
 
    # one file name, no NUL
    ['1', '--files0-from=-', '<',
@@ -84,7 +84,7 @@ my @Tests =
    ['zero-len', '--files0-from=-', '<',
     {IN=>{f=>"\0g\0"}}, {AUX=>{g=>''}},
     {OUT=>"0\tg\n"}, {OUT_SUBST=>'s/^\d+/0/'},
-    {ERR => "$prog: -:1: invalid zero-length file name\n"}, {EXIT=>1} ],
+    {ERR => "$prog: '-':1: invalid zero-length file name\n"}, {EXIT=>1} ],
   );
 
 my $save_temps = $ENV{DEBUG};
diff --git a/tests/du/move-dir-while-traversing.sh b/tests/du/move-dir-while-traversing.sh
index 67bb34580..33db58e44 100755
--- a/tests/du/move-dir-while-traversing.sh
+++ b/tests/du/move-dir-while-traversing.sh
@@ -92,7 +92,7 @@ du -a $t d2 2> err
 test $? = 1 || fail=1
 
 # check for the new diagnostic
-printf "du: fts_read failed: $t/3/a/b: No such file or directory\n" > exp \
+printf "du: fts_read failed: '$t/3/a/b': No such file or directory\n" > exp \
   || fail=1
 compare exp err || fail=1