bug#22786: 25.1.50; eww arabic rendering

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: 22786@debbugs.gnu.org,  mohamed.hibti@gmail.com
> Date: Mon, 29 Feb 2016 15:36:21 +1100
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> eww defaults explicitly to left-to-right, so the user just needs
> >> something to switch to right-to-left...  (And back again, if needed.)
> >
> > If you have a page whose paragraphs need different directions, neither
> > of the above 2 will DTRT, but nil will.
> 
> Oh, that's true...

I suggest to call the 3rd state "auto" or "auto-detected".

Thanks.