Merged revisions 78433 via svnmerge from

Merged revisions 78433 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r78433 | senthil.kumaran | 2010-02-25 02:33:37 +0530 (Thu, 25 Feb 2010) | 10 lines

  Merged revisions 78431 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

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    r78431 | senthil.kumaran | 2010-02-25 02:25:31 +0530 (Thu, 25 Feb 2010) | 4 lines

    Fix for Issue7540 ; urllib2 will raise a TypeError when you try to add_data to
    a existing req object already having data.
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