--- a/hgext/extdiff.py	Sun Jun 21 16:35:44 2009 +0200
+++ b/hgext/extdiff.py	Sun Jun 21 16:45:47 2009 +0200
@@ -5,7 +5,8 @@
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2, incorporated herein by reference.
 
-'''
+'''allow external programs to compare revisions
+
 The `extdiff' Mercurial extension allows you to use external programs
 to compare revisions, or revision with working directory. The external diff
 programs are called with a configurable set of options and two