Merged revisions 78604 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r78604 | benjamin.peterson | 2010-03-02 17:43:47 -0600 (Tue, 02 Mar 2010) | 1 line

  plug ref leaks
........

Lib/test/test_argparse.py

@@ -4178,6 +4178,10 @@ def test_main():
             category=DeprecationWarning)
 
         support.run_unittest(__name__)
+    # Remove global references to avoid looking like we have refleaks.
+    RFile.seen = {}
+    WFile.seen = set()
+
 
 
 if __name__ == '__main__':