--- a/tests/test-uncommit.t	Fri Nov 24 03:44:50 2017 +0530
+++ b/tests/test-uncommit.t	Tue Nov 28 05:50:45 2017 +0530
@@ -41,6 +41,7 @@
 
   $ hg uncommit
   abort: cannot uncommit null changeset
+  (no changeset checked out)
   [255]
 
 Create some commits