Merged revisions 66634 via svnmerge from

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

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  r66634 | benjamin.peterson | 2008-09-26 21:49:54 -0500 (Fri, 26 Sep 2008) | 7 lines

  give ftplib a real test suite

  A asyncore based mock ftp server is used to test the protocol.
  This is all thanks to Giampaolo Rodola #3939

  (Barry gave me permission to do this before final on IRC.)
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