bug#20484: bug#20202: Considered Harmful 73d213: 'Comint, term, and compile new set Emacs'

[Eli Zaretskii]

> From: phillip.lord@russet.org.uk (Phillip Lord)
> Date: Thu, 07 Apr 2016 20:55:02 +0100
> Cc: 20202@debbugs.gnu.org, 20484@debbugs.gnu.org, monnier@iro.umontreal.ca
> 
> 1) For bash, launch with -o emacs, or call set -o emacs after launch.
> 2) zsh, launch and call unsetopt zle.
> 3) For tcsh, EMACS=t only needs to be correct during init. So, EMACS=t,
> launch tcsh, set EMACS=what-ever-it-was-before.
> 4) Everything else -- move the "call-process" call to a single function
> which people can advice as they choose.

Thanks.  Such  solution, if it indeed works, could be OK for master,
but not for emacs-25.