Merged revisions 74771 via svnmerge from

Merged revisions 74771 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

................
  r74771 | mark.dickinson | 2009-09-13 13:06:08 +0100 (Sun, 13 Sep 2009) | 10 lines

  Merged revisions 74769 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

  ........
    r74769 | mark.dickinson | 2009-09-13 12:56:13 +0100 (Sun, 13 Sep 2009) | 3 lines

    Fix potential signed-overflow bug in _PyLong_Format;  also fix
    a couple of whitespace issues.
  ........
................