--- a/contrib/shrink-revlog.py	Sun Sep 19 12:38:44 2010 -0500
+++ b/contrib/shrink-revlog.py	Sun Sep 19 12:51:54 2010 -0500
@@ -117,7 +117,7 @@
 
     try:
         group = util.chunkbuffer(r1.group(order, lookup, progress))
-        r2.addgroup(group.chunks(), unlookup, tr)
+        r2.addgroup(group, unlookup, tr)
     finally:
         ui.progress(_('writing'), None)