--- a/mercurial/changelog.py	Sun Jul 15 12:43:10 2012 -0400
+++ b/mercurial/changelog.py	Fri Jul 17 15:53:56 2015 +0200
@@ -269,7 +269,7 @@
         access its content.
 
         This function will read all the index data out of the pending file and
-        extend the main index."""
+        overwrite the main index."""
 
         if not self.opener.exists(file):
             return # no pending data for changelog