--- a/mercurial/manifest.py	Sun Apr 26 16:50:44 2009 -0500
+++ b/mercurial/manifest.py	Sun Apr 26 16:50:44 2009 -0500
@@ -130,7 +130,7 @@
         # if we're using the listcache, make sure it is valid and
         # parented by the same node we're diffing against
         if not (changed and self.listcache and p1 and self.mapcache[0] == p1):
-            files = util.sort(map)
+            files = sorted(map)
             checkforbidden(files)
 
             # if this is changed to support newlines in filenames,