Merged revisions 81007 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r81007 | jean-paul.calderone | 2010-05-08 16:06:02 -0400 (Sat, 08 May 2010) | 1 line

  Skip signal handler re-installation if it is not necessary.  Issue 8354.
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4 files changed