Recorded merge of revisions 81442 via svnmerge from

Recorded merge of revisions 81442 via svnmerge from
svn+ssh://svn.python.org/python/branches/py3k

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  r81442 | georg.brandl | 2010-05-21 23:48:27 +0200 (Fr, 21 Mai 2010) | 9 lines

  Merged revisions 81440 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

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    r81440 | georg.brandl | 2010-05-21 23:47:05 +0200 (Fr, 21 Mai 2010) | 1 line

    Correct info for Semaphore.acquire() semantics under OSX.
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