diff -r 5a3338e0faf7 -r 3a4620ad4490 mercurial/help.py
--- a/mercurial/help.py	Tue Sep 08 11:35:22 2015 -0400
+++ b/mercurial/help.py	Sun Aug 30 18:54:31 2015 -0400
@@ -179,7 +179,7 @@
 
 def makeitemsdoc(topic, doc, marker, items, dedent=False):
     """Extract docstring from the items key to function mapping, build a
-    .single documentation block and use it to overwrite the marker in doc
+    single documentation block and use it to overwrite the marker in doc.
     """
     entries = []
     for name in sorted(items):