10 files changed, 18 insertions, 18 deletions
diff --git a/tests/tail-2/F-vs-missing b/tests/tail-2/F-vs-missing
index 194b55943..fbdb53314 100755
--- a/tests/tail-2/F-vs-missing
+++ b/tests/tail-2/F-vs-missing
@@ -33,14 +33,14 @@ check_tail_output()
 }
 
 # Wait up to 6.3s for tail to start with diagnostic:
-# tail: cannot open `missing/file' for reading: No such file or directory
+# tail: cannot open 'missing/file' for reading: No such file or directory
 tail_re='cannot open' retry_delay_ check_tail_output .1 7 || fail=1
 
 mkdir missing || fail=1
 (cd missing && echo x > file)
 
 # Wait up to 6.3s for this to appear in the output:
-# "tail: `...' has appeared;  following end of new file"
+# "tail: '...' has appeared;  following end of new file"
 tail_re='has appeared' retry_delay_ check_tail_output .1 7 ||
   { echo "$0: file: unexpected delay?"; cat out; fail=1; }
 
diff --git a/tests/tail-2/F-vs-rename b/tests/tail-2/F-vs-rename
index 7967296a2..53bc00dd3 100755
--- a/tests/tail-2/F-vs-rename
+++ b/tests/tail-2/F-vs-rename
@@ -41,12 +41,12 @@ tail_re='^x$' retry_delay_ check_tail_output .1 7 || fail=1
 mv a b || fail=1
 
 # Wait 6.3s for this diagnostic:
-# tail: `a' has become inaccessible: No such file or directory
+# tail: 'a' has become inaccessible: No such file or directory
 tail_re='inaccessible' retry_delay_ check_tail_output .1 7 || fail=1
 
 echo x > a
 # Wait up to 6.3s for this to appear in the output:
-# "tail: `...' has appeared;  following end of new file"
+# "tail: '...' has appeared;  following end of new file"
 tail_re='has appeared' retry_delay_ check_tail_output .1 7 ||
   { echo "$0: a: unexpected delay?"; cat out; fail=1; }
 
diff --git a/tests/tail-2/assert b/tests/tail-2/assert
index 9632b104f..c34f90d77 100755
--- a/tests/tail-2/assert
+++ b/tests/tail-2/assert
@@ -19,7 +19,7 @@
 
 # This test fails with tail from textutils-2.0.
 # It would get something like this:
-#   tail: tail.c:718: recheck: Assertion `valid_file_spec (f)' failed.
+#   tail: tail.c:718: recheck: Assertion 'valid_file_spec (f)' failed.
 #   Aborted
 # due to a race condition in which a dev/inode pair is reused.
 
@@ -39,8 +39,8 @@ tail_pid=$!
 
 echo sleeping for 7 seconds...
 
-# Give the backgrounded `tail' a chance to start before removing foo.
-# Otherwise, without --retry, tail wouldn't try to open `foo' again.
+# Give the backgrounded 'tail' a chance to start before removing foo.
+# Otherwise, without --retry, tail wouldn't try to open 'foo' again.
 sleep 1
 
 rm -f foo
diff --git a/tests/tail-2/assert-2 b/tests/tail-2/assert-2
index 25ddb8b20..b8f099d5f 100755
--- a/tests/tail-2/assert-2
+++ b/tests/tail-2/assert-2
@@ -1,6 +1,6 @@
 #!/bin/sh
-# This variant of `assert' would get a UMR reliably in 2.0.9.
-# Due to a race condition in the test, the `assert' script would get
+# This variant of 'assert' would get a UMR reliably in 2.0.9.
+# Due to a race condition in the test, the 'assert' script would get
 # the UMR on Solaris only some of the time, and not at all on Linux/GNU.
 
 # Copyright (C) 2000, 2006-2012 Free Software Foundation, Inc.
diff --git a/tests/tail-2/big-4gb b/tests/tail-2/big-4gb
index 3bd53039e..171dd1bd7 100755
--- a/tests/tail-2/big-4gb
+++ b/tests/tail-2/big-4gb
@@ -1,5 +1,5 @@
 #!/bin/sh
-# Demonstrate a bug in `tail -cN' when operating on files of size 4G and larger
+# Demonstrate a bug in 'tail -cN' when operating on files of size 4G and larger
 # Fixed in coreutils-4.5.2.
 
 # Copyright (C) 2002-2003, 2006-2012 Free Software Foundation, Inc.
diff --git a/tests/tail-2/follow-name b/tests/tail-2/follow-name
index a615d799d..2ab1c0119 100755
--- a/tests/tail-2/follow-name
+++ b/tests/tail-2/follow-name
@@ -20,7 +20,7 @@
 print_ver_ tail
 
 cat <<\EOF > exp || framework_failure_
-tail: cannot open `no-such' for reading: No such file or directory
+tail: cannot open 'no-such' for reading: No such file or directory
 tail: no files remaining
 EOF
 
diff --git a/tests/tail-2/inotify-hash-abuse b/tests/tail-2/inotify-hash-abuse
index ee3a2a571..deec76d1b 100755
--- a/tests/tail-2/inotify-hash-abuse
+++ b/tests/tail-2/inotify-hash-abuse
@@ -41,14 +41,14 @@ tail_re='^x$' retry_delay_ check_tail_output .1 7 || fail=1
 mv 1 f || fail=1
 
 # Wait 6.3s for this diagnostic:
-# tail: `1' has become inaccessible: No such file or directory
+# tail: '1' has become inaccessible: No such file or directory
 tail_re='inaccessible' retry_delay_ check_tail_output .1 7 || fail=1
 
 # Trigger the bug.  Before the fix, this would provoke the abort.
 echo a > 1 || fail=1
 
 # Wait up to 2s for the buggy tail to die,
-# or for the "tail: `1' has appeared;  following end of new file" output
+# or for the "tail: '1' has appeared;  following end of new file" output
 for i in $(seq 10); do
   kill -0 $pid || break
   grep 'has appeared;' out > /dev/null && break
diff --git a/tests/tail-2/proc-ksyms b/tests/tail-2/proc-ksyms
index f4d8e8c27..e3577a85a 100755
--- a/tests/tail-2/proc-ksyms
+++ b/tests/tail-2/proc-ksyms
@@ -1,5 +1,5 @@
 #!/bin/sh
-# Prior to textutils-2.0.17, `tail /proc/ksyms' would segfault on Linux.
+# Prior to textutils-2.0.17, 'tail /proc/ksyms' would segfault on Linux.
 
 # Copyright (C) 2001, 2004, 2006-2012 Free Software Foundation, Inc.
 
diff --git a/tests/tail-2/tail-n0f b/tests/tail-2/tail-n0f
index f5c2ec591..29448d986 100755
--- a/tests/tail-2/tail-n0f
+++ b/tests/tail-2/tail-n0f
@@ -1,5 +1,5 @@
 #!/bin/sh
-# Make sure that `tail -n0 -f' and `tail -c0 -f' sleep
+# Make sure that 'tail -n0 -f' and 'tail -c0 -f' sleep
 # rather than doing what amounted to a busy-wait.
 
 # Copyright (C) 2003, 2006-2012 Free Software Foundation, Inc.
diff --git a/tests/tail-2/wait b/tests/tail-2/wait
index 2b051fc6b..24764bd06 100755
--- a/tests/tail-2/wait
+++ b/tests/tail-2/wait
@@ -1,6 +1,6 @@
 #!/bin/sh
-# Make sure that `tail -f' returns immediately if a file doesn't exist
-# while `tail -F' waits for it to appear.
+# Make sure that 'tail -f' returns immediately if a file doesn't exist
+# while 'tail -F' waits for it to appear.
 
 # Copyright (C) 2003, 2006-2012 Free Software Foundation, Inc.
 
@@ -36,7 +36,7 @@ for inotify in ---disable-inotify ''; do
   timeout 1 tail -s0.1 -f $inotify here 2>tail.err
   test $? = 124 || fail=1
 
-  # `tail -F' must wait in any case.
+  # 'tail -F' must wait in any case.
 
   timeout 1 tail -s0.1 -F $inotify here 2>>tail.err
   test $? = 124 || fail=1