[docs] Improve doc for str(bytesobject) (issue 13538)

[ezio.melotti at gmail.com]

I added one more comment.
There are also a couple of my previous comments that have not been
addressed.  Did you just miss them or do you think that the original
form was already OK?


http://bugs.python.org/review/13538/diff/6626/Doc/library/functions.rst
File Doc/library/functions.rst (right):

http://bugs.python.org/review/13538/diff/6626/Doc/library/functions.rst#newcode1268
Doc/library/functions.rst:1268: representation :func:`repr` of *object*.
This sentence doesn't sound too well.  Maybe "If *object* does not have
an :meth:`object.__str__` method, then :func:`str` falls back on calling
:meth:`object.__repr__`"?

http://bugs.python.org/review/13538/