Merged revisions 81461 via svnmerge from

Merged revisions 81461 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r81461 | victor.stinner | 2010-05-22 04:16:27 +0200 (sam., 22 mai 2010) | 10 lines

  Merged revisions 81459 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

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    r81459 | victor.stinner | 2010-05-22 04:11:07 +0200 (sam., 22 mai 2010) | 3 lines

    Issue #6268: Fix seek() method of codecs.open(), don't read the BOM twice
    after seek(0)
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