bug#27272: 25.2; [patch] Fix positional args among keyword args in eldoc.

[Eli Zaretskii]

> From: Thierry Volpiatto <thierry.volpiatto@gmail.com>
> Date: Wed, 07 Jun 2017 11:31:28 +0200
> 
> 
> If no objections can I push this ?

Could you perhaps provide some more explanations for what problem you
are trying to solve and how?  The log message doesn't help in
understanding that (and also doesn't describe the actual changes, only
their general idea, so it seems).

Also, does any of this cause visible behavior changes?  If so, perhaps
a NEWS entry is in order.

Thanks.