Blocked revisions 80948-80950,80971 via svnmerge

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  r80948 | victor.stinner | 2010-05-08 02:07:07 +0200 (sam., 08 mai 2010) | 2 lines

  err_input(): don't encode/decode the unicode message
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  r80949 | victor.stinner | 2010-05-08 02:35:33 +0200 (sam., 08 mai 2010) | 3 lines

  PyErr_SetFromErrnoWithFilename() decodes the filename using
  PyUnicode_DecodeFSDefault() instead of PyUnicode_FromString()
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  r80950 | victor.stinner | 2010-05-08 02:36:42 +0200 (sam., 08 mai 2010) | 5 lines

  posix_error_with_allocated_filename() decodes the filename with
  PyUnicode_DecodeFSDefaultAndSize() and call
  PyErr_SetFromErrnoWithFilenameObject() instead of
  PyErr_SetFromErrnoWithFilename()
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  r80971 | victor.stinner | 2010-05-08 13:10:09 +0200 (sam., 08 mai 2010) | 3 lines

  Issue #8514: Add os.fsencode() function (Unix only): encode a string to bytes
  for use in the file system, environment variables or the command line.
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