bug#70105: 30.0.50; Emacs should support EditorConfig out of the box

[Stefan Kangas]

Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of
text editors" <bug-gnu-emacs@gnu.org> writes:

> I'm hoping this can get into Emacs-30.
> Comments/objections?

Thanks for working on this.

Your patches LGTM with Eli's comments.

>  (defun find-auto-coding (filename size)
> +  ;; FIXME: Shouldn't we use nil rather than "" to mean that there's no file?
> +  ;; FIXME: Clarify what the SOURCE is for in the return value?

BTW, shouldn't this sentence now end with a "."?  :-)