Merged revisions 87807,87820,87831,87859 via svnmerge from

Merged revisions 87807,87820,87831,87859 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r87807 | georg.brandl | 2011-01-06 20:28:18 +0100 (Do, 06 Jan 2011) | 1 line

  #10846: fix typo.
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  r87820 | georg.brandl | 2011-01-07 19:28:45 +0100 (Fr, 07 Jan 2011) | 1 line

  #10856: document (Base)Exception.args better.
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  r87831 | georg.brandl | 2011-01-07 21:58:25 +0100 (Fr, 07 Jan 2011) | 1 line

  Fix indent.
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  r87859 | georg.brandl | 2011-01-08 10:45:43 +0100 (Sa, 08 Jan 2011) | 1 line

  #10855: document close() semantics of wave objects.
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