Merged revisions 66023 via svnmerge from

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

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  r66023 | neal.norwitz | 2008-08-24 18:50:24 -0700 (Sun, 24 Aug 2008) | 6 lines

  Fix problem reported by pychecker where AuthenticationError wasn't imported.
  Add some test coverage to this code.  More tests should be added (TODO added).

  R=Brett
  TESTED=./python -E -tt ./Lib/test/regrtest.py test_multiprocessing
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