--- a/mercurial/url.py	Sat Apr 30 07:30:38 2011 -0500
+++ b/mercurial/url.py	Sat Apr 30 13:59:14 2011 +0200
@@ -781,7 +781,7 @@
 
             host = self.host
             if self.realhostport: # use CONNECT proxy
-                something = _generic_proxytunnel(self)
+                _generic_proxytunnel(self)
                 host = self.realhostport.rsplit(':', 1)[0]
 
             cacerts = self.ui.config('web', 'cacerts')