[docs] [issue13753] str.join description contains an incorrect reference to argument

[Terry J. Reedy]

Changes by Terry J. Reedy <tjreedy at udel.edu>:


----------
assignee: docs at python -> terry.reedy
keywords: +easy, patch
nosy: +terry.reedy
versions: +Python 2.7, Python 3.3

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue13753>
_______________________________________