Merged revisions 70053 via svnmerge from

Merged revisions 70053 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r70053 | hirokazu.yamamoto | 2009-02-28 19:56:50 +0900 | 10 lines

  Merged revisions 70052 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

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    r70052 | hirokazu.yamamoto | 2009-02-28 19:31:54 +0900 | 2 lines

    Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer
    overrun.
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