--- a/mercurial/commands.py	Fri Nov 16 10:01:26 2012 -0600
+++ b/mercurial/commands.py	Fri Nov 16 10:20:32 2012 -0600
@@ -2936,7 +2936,7 @@
     def matchlines(body):
         begin = 0
         linenum = 0
-        while True and begin < len(body):
+        while begin < len(body):
             match = regexp.search(body, begin)
             if not match:
                 break