--- a/mercurial/cmdutil.py	Mon Dec 21 12:18:43 2009 +0200
+++ b/mercurial/cmdutil.py	Mon Dec 14 00:32:29 2009 +0900
@@ -95,7 +95,7 @@
             raise util.Abort(_('limit must be a positive integer'))
         if limit <= 0: raise util.Abort(_('limit must be positive'))
     else:
-        limit = sys.maxint
+        limit = None
     return limit
 
 def remoteui(src, opts):