Merged revisions 73934 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r73934 | amaury.forgeotdarc | 2009-07-11 11:35:13 +0200 (sam., 11 juil. 2009) | 3 lines

  #6358: Merge r73933: Add basic tests for the return value of os.popen().close().
  And fix the implementation to make these tests pass with py3k
........