diff -r 5cc7905bccc9 -r 1ffeeb91c55d mercurial/copies.py
--- a/mercurial/copies.py	Tue May 31 20:39:04 2011 -0500
+++ b/mercurial/copies.py	Wed Jun 01 12:38:46 2011 +0200
@@ -134,7 +134,7 @@
             if f2r is None:
                 f2 = g2.next()
 
-            while 1:
+            while True:
                 f1r, f2r = f1.rev(), f2.rev()
                 if f1r > f2r:
                     f1 = g1.next()