[pushed/obv] DOC: Add space before the opening parenthesis in function descriptions

[Eli Zaretskii]

> Date: Mon, 9 Jun 2014 07:23:27 -0700
> From: Siva Chandra <sivachandra@google.com>
> 
> doc/
> 2014-06-09  Siva Chandra Reddy  <sivachandra@google.com>
> 
>         * python.texi (Xmethod API): Add space before the opening
>         parenthesis in function descriptions.

Thanks.  As luck would have it, I also bumped into this today.