diff -r 8b2cd04a6e97 -r 0a9542703300 mercurial/error.py
--- a/mercurial/error.py	Sun Apr 26 01:13:08 2009 +0200
+++ b/mercurial/error.py	Sun Apr 26 01:24:49 2009 +0200
@@ -1,12 +1,16 @@
 # error.py - Mercurial exceptions
 #
-# This allows us to catch exceptions at higher levels without forcing imports
-#
 # Copyright 2005-2008 Matt Mackall <mpm@selenic.com>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2, incorporated herein by reference.
 
+"""Mercurial exceptions.
+
+This allows us to catch exceptions at higher levels without forcing
+imports.
+"""
+
 # Do not import anything here, please
 
 class RevlogError(Exception):