Merged revisions 84492 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r84492 | antoine.pitrou | 2010-09-04 19:32:06 +0200 (sam., 04 sept. 2010) | 4 lines

  Issue #9581: Fix non-working PosixGroupsTester test case
  (it only runs as root, which is why nobody bothered about the failure)
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