Merged revisions 81667 via svnmerge from

Merged revisions 81667 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r81667 | lars.gustaebel | 2010-06-03 14:34:14 +0200 (Thu, 03 Jun 2010) | 8 lines

  Issue #8741: Fixed the TarFile.makelink() method that is responsible
  for extracting symbolic and hard link entries as regular files as a
  work-around on platforms that do not support filesystem links.

  This stopped working reliably after a change in r74571. I also added
  a few tests for this functionality.
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