bug#23179: 25.0.92; Restore `M-,' to continue etags search

[Eli Zaretskii]

> Date: Fri, 8 Apr 2016 12:28:49 +0200
> From: Anders Lindgren <andlind@gmail.com>
> Cc: Brief Busters <dgutov@yandex.ru>, 23179@debbugs.gnu.org
> 
>  So does having a customizable option which switches between UI and
>  no-UI versions sound like a step in the right direction?
> 
> No. I want to be able to access both versions using different commands.

If we have an option, then adding a command that binds that option to
one value or the other is very simple.  So I'm puzzled why you don't
see this as a step in the right direction.  Can you point me to what
I'm missing here?

Thanks.