bug#6853: 24.0.50; python mode coloring broke

[Glenn Morris]

Thomas Riccardi wrote:

> def test():
>       """"""
>       return None
>       
> The issue is the following:
> All the lines after the empty triple-quoted string are colored with
> the 'font-lock-string-face' face.

Thanks, that's much clearer. This issue still occurs with the latest
python.el in the Emacs trunk.