diff -r 85fd8402cbc4 -r d51630301241 mercurial/util.py
--- a/mercurial/util.py	Fri May 06 15:13:46 2011 +0200
+++ b/mercurial/util.py	Fri May 06 15:16:22 2011 +0200
@@ -487,7 +487,7 @@
             return _("filename ends with '%s', which is not allowed "
                      "on Windows") % t
 
-def lookup_reg(key, name=None, scope=None):
+def lookupreg(key, name=None, scope=None):
     return None
 
 def hidewindow():