--- a/tests/test-topic.t	Wed Jun 10 17:40:50 2015 -0500
+++ b/tests/test-topic.t	Wed Jun 10 17:52:07 2015 -0500
@@ -42,6 +42,25 @@
 Still no topics
   $ hg topics
 
+Test commit flag and help text
+
+  $ echo stuff >> alpha
+  $ HGEDITOR=cat hg ci -t topicflag
+  
+  
+  HG: Enter commit message.  Lines beginning with 'HG:' are removed.
+  HG: Leave message empty to abort commit.
+  HG: --
+  HG: user: test
+  HG: topic 'topicflag'
+  HG: branch 'default'
+  HG: changed alpha
+  abort: empty commit message
+  [255]
+  $ hg revert alpha
+  $ hg topic
+   * topicflag
+
 Make a topic
   $ hg topic narf
   $ hg topics