[issue2856] os.listdir doc should mention that Unicode decoding can fail

["Martin v. Löwis" <report@bugs.python.org> at psf.upfronthosting.co.za]

Changes by Martin v. Löwis <martin at v.loewis.de>:


----------
versions: +Python 2.7 -Python 3.1

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue2856>
_______________________________________