Merged revisions 81841 via svnmerge from

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

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  r81841 | victor.stinner | 2010-06-08 22:46:00 +0200 (mar., 08 juin 2010) | 6 lines

  sys_pyfile_write() does nothing if file is NULL

  mywrite() falls back to the C file object if sys_pyfile_write() returns an
  error. This patch fixes a segfault is Py_FatalError() is called in an early
  stage of Python initialization.
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