--- a/hgext3rd/topic/__init__.py	Mon Nov 04 14:58:58 2019 -0800
+++ b/hgext3rd/topic/__init__.py	Thu Nov 07 10:29:03 2019 +0100
@@ -634,7 +634,7 @@
         (b'', b'age', False, b'show when you last touched the topics'),
         (b'', b'current', None, b'display the current topic only'),
     ] + commands.formatteropts,
-    _(b'hg topics [TOPIC]'),
+    _(b'hg topics [OPTION]... [-r REV]... [TOPIC]'),
     **compat.helpcategorykwargs('CATEGORY_CHANGE_ORGANIZATION'))
 def topics(ui, repo, topic=None, **opts):
     """View current topic, set current topic, change topic for a set of revisions, or see all topics.