diff -r e59a7b8f521a -r 406b6d7bdcb9 mercurial/dispatch.py
--- a/mercurial/dispatch.py	Wed Jun 08 14:54:52 2011 +0300
+++ b/mercurial/dispatch.py	Tue Jun 07 13:39:09 2011 +0300
@@ -276,7 +276,7 @@
                 replace['0'] = self.name
                 replace['@'] = ' '.join(args)
                 cmd = util.interpolate(r'\$', replace, cmd, escape_prefix=True)
-                return util.system(cmd, environ=env)
+                return util.system(cmd, environ=env, out=ui.fout)
             self.fn = fn
             return