Merged revisions 63644 via svnmerge from

Merged revisions 63644 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r63644 | martin.v.loewis | 2008-05-25 19:19:22 +0200 (So, 25 Mai 2008) | 10 lines

  Merged revisions 63634-63643 via svnmerge from
  svn+ssh://pythondev@svn.python.org/sandbox/trunk/2to3/lib2to3

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    r63643 | martin.v.loewis | 2008-05-25 19:18:21 +0200 (So, 25 Mai 2008) | 3 lines

    Don't abort on IOErrors caused by saving pickle files.
    Fixes #2938.
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