--- a/hgext/obsolete.py	Wed Sep 12 18:27:16 2012 -0400
+++ b/hgext/obsolete.py	Wed Sep 12 17:57:30 2012 -0400
@@ -5,7 +5,7 @@
 # GNU General Public License version 2 or any later version.
 """Deprecated extension that formerly introduced "Changeset Obsolescence".
 
-This concept is now partially in Mercurial core (starting with mercurial 2.3).
+This concept is now partially in Mercurial core (starting with Mercurial 2.3).
 The remaining logic has been grouped with the evolve extension.
 
 Some code remains in this extensions to detect and convert prehistoric format