--- a/tests/test-topic.t	Wed May 23 11:37:37 2018 +0200
+++ b/tests/test-topic.t	Wed May 23 12:16:24 2018 +0200
@@ -535,6 +535,7 @@
   tip
   $ hg phase --public narf
   active topic 'narf' is now empty
+  (use 'hg topic --clear' to clear it if needed)
 
 POSSIBLE BUG: narf topic stays alive even though we just made all
 narf commits public: