[docs] [issue1705393] Document select() failure with buffered file

[Martin Panter]

Changes by Martin Panter <vadmium+py at gmail.com>:


----------
title: Select() failure (race condition) -> Document select() failure with buffered file
versions: +Python 3.5, Python 3.6 -Python 3.1, Python 3.2

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue1705393>
_______________________________________