diff -r 4ddb05751b12 -r 7109d5ddeb0c tests/test-extdiff.t
--- a/tests/test-extdiff.t	Tue Sep 20 23:47:30 2016 +0000
+++ b/tests/test-extdiff.t	Tue Sep 20 23:47:46 2016 +0000
@@ -399,14 +399,14 @@
 
   $ HGPLAIN=1 hg --config hgext.extdiff= --config extdiff.cmd.td=hi help -k xyzzy
   abort: no matches
-  (try "hg help" for a list of topics)
+  (try 'hg help' for a list of topics)
   [255]
 
   $ HGPLAIN=1 hg --config hgext.extdiff= --config extdiff.cmd.td=hi help td > /dev/null
 
   $ LC_MESSAGES=ja_JP.UTF-8 hg --config hgext.extdiff= --config extdiff.cmd.td=$U help -k xyzzy
   abort: no matches
-  (try "hg help" for a list of topics)
+  (try 'hg help' for a list of topics)
   [255]
 
   $ LC_MESSAGES=ja_JP.UTF-8 hg --config hgext.extdiff= --config extdiff.cmd.td=$U help td \