--- a/tests/test-command-template.t	Fri Dec 29 06:32:17 2017 +0530
+++ b/tests/test-command-template.t	Sat Apr 01 17:18:31 2017 +0900
@@ -4085,6 +4085,9 @@
   $ hg log -T '{revset("%whatever", 0)}\n'
   hg: parse error: unexpected revspec format character w
   [255]
+  $ hg log -T '{revset("%lwhatever", files)}\n'
+  hg: parse error: unexpected revspec format character w
+  [255]
 
 Test files function