Merged revisions 82150 via svnmerge from

Merged revisions 82150 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r82150 | ronald.oussoren | 2010-06-22 11:32:22 +0200 (Tue, 22 Jun 2010) | 12 lines

  The code in _scproxy (a mac specific helper module to
  detect proxy settings) had the wrong logic for detecting
  if the checkbox 'Exclude simple hostnames' is checked. This
  checkin fixes that.

  As a result the test failure 'Issue8455' goes away on systems
  where the checkbox is not checked.

  I'm carefully avoiding saying that is fixes that issue,
  test_urllib2_localnet assumes that system proxy settings are
  empty (not just on OSX, see Issue8455 for details).
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