--- a/tests/test-command-template.t	Thu Jul 28 08:53:36 2016 -0700
+++ b/tests/test-command-template.t	Wed Jul 27 15:14:19 2016 -0500
@@ -3253,6 +3253,9 @@
   1970-01-01 09:00 +0900
   $ TZ=JST-09 hg log -r0 -T '{localdate(date, "UTC")|isodate}\n'
   1970-01-01 00:00 +0000
+  $ TZ=JST-09 hg log -r0 -T '{localdate(date, "blahUTC")|isodate}\n'
+  hg: parse error: localdate expects a timezone
+  [255]
   $ TZ=JST-09 hg log -r0 -T '{localdate(date, "+0200")|isodate}\n'
   1970-01-01 02:00 +0200
   $ TZ=JST-09 hg log -r0 -T '{localdate(date, "0")|isodate}\n'