--- a/mercurial/posix.py	Thu Oct 07 23:34:21 2010 -0500
+++ b/mercurial/posix.py	Sun Oct 10 10:06:36 2010 -0500
@@ -272,7 +272,7 @@
 def gethgcmd():
     return sys.argv[:1]
 
-def termwidth_():
+def termwidth():
     try:
         import termios, array, fcntl
         for dev in (sys.stderr, sys.stdout, sys.stdin):