bug#7169: cannot specify coding via dir-locals

[Eli Zaretskii]

> From: Glenn Morris <rgm@gnu.org>
> Date: Wed, 06 Oct 2010 15:39:29 -0400
> Cc: 
> 
> Package: emacs
> 
> I added:
> 
>   (coding . utf-8)
> 
> to the change-log-mode section in the Emacs .dir-locals.el file, then did
> 
>  ./src/emacs -Q lisp/ChangeLog.1
> 
> The file was opened in undecided-unix. I was hoping to be able to
> remove the "coding: utf-8" that many of the Emacs ChangeLog files
> (but not that particular example) have.

Independently of the potential bug, why is it a good idea to have such
a setting in the Emacs tree?  There are some files for which this will
do the wrong thing.