[issue30662] fix OrderedDict.__init__ docstring to reflect PEP 468

[Brett Cannon]

Brett Cannon added the comment:

Past Python details should not be included in docstrings; it should simply represent the current code.

----------
nosy: +brett.cannon, eric.snow

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30662>
_______________________________________