opener: add audit function

opener: add audit function

--- a/mercurial/scmutil.py	Sat May 21 15:09:15 2011 -0500
+++ b/mercurial/scmutil.py	Sat May 21 23:13:59 2011 +0200
@@ -256,6 +256,9 @@
             f.close()
             self._fixfilemode(dst)
 
+    def audit(self, path):
+        self.auditor(path)
+
 class filteropener(abstractopener):
     '''Wrapper opener for filtering filenames with a function.'''