Merged revisions 73016 via svnmerge from

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

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  r73016 | martin.v.loewis | 2009-05-29 17:58:08 +0200 (Fr, 29 Mai 2009) | 2 lines

  Issue #4873: Fix resource leaks in error cases of pwd and grp.
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