Issue #8780: Only backport the new test, the fix is not needed

Issue #8780: Only backport the new test, the fix is not needed

Recorded merge of revisions 81403 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r81403 | victor.stinner | 2010-05-21 22:13:12 +0200 (ven., 21 mai 2010) | 5 lines

  Issue #8780: Fix a regression introduced by r78946 in subprocess on Windows

  Ensure that stdout / stderr is inherited from the parent if stdout=PIPE /
  stderr=PIPE is not used.
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