Merged revisions 81294 via svnmerge from

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  r81294 | giampaolo.rodola | 2010-05-18 22:04:31 +0200 (mar, 18 mag 2010) | 1 line

  Fix issue #8573 (asyncore._strerror bug): fixed os.strerror typo; included NameError in the tuple of expected exception; added test case for asyncore._strerror.
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