Merged revisions 70090 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

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  r70090 | gregory.p.smith | 2009-03-01 21:13:57 -0800 (Sun, 01 Mar 2009) | 3 lines

  Adds an optional flags argument to re.split, re.sub and re.subn to be
  consistent with the other re module functions.
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