--- a/tests/test-amend.t	Fri Nov 24 03:44:50 2017 +0530
+++ b/tests/test-amend.t	Tue Nov 28 05:50:45 2017 +0530
@@ -213,6 +213,7 @@
   $ hg update -C -q A
   $ hg amend -m AMEND
   abort: cannot amend public changesets
+  (see 'hg help phases' for details)
   [255]
 
 Amend a merge changeset