Merged revisions 78314 via svnmerge from

Merged revisions 78314 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r78314 | mark.dickinson | 2010-02-22 15:41:48 +0000 (Mon, 22 Feb 2010) | 9 lines

  Merged revisions 78312 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

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    r78312 | mark.dickinson | 2010-02-22 15:40:28 +0000 (Mon, 22 Feb 2010) | 1 line

    Clarify description of three-argument pow for Decimal types:  the exponent of the result is always 0.
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