Merged revisions 68908 via svnmerge from

Merged revisions 68908 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r68908 | mark.dickinson | 2009-01-24 21:46:33 +0000 (Sat, 24 Jan 2009) | 15 lines

  Merged revisions 68903,68906 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

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    r68903 | mark.dickinson | 2009-01-24 16:40:29 +0000 (Sat, 24 Jan 2009) | 5 lines

    Issue #1672332: Fix unpickling of subnormal floats, which was raising
    ValueError on some platforms as a result of the platform strtod setting
    errno on underflow.
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    r68906 | mark.dickinson | 2009-01-24 21:08:38 +0000 (Sat, 24 Jan 2009) | 2 lines

    Issue #3657: fix occasional test_pickletools failures.
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