bug#49330: Customization buffer should also offer printing code snippets

[Eli Zaretskii <eliz@gnu.org>]

> From: 積丹尼 Dan Jacobson <jidanni@jidanni.org>
> Cc: 49330@debbugs.gnu.org
> Date: Sat, 03 Jul 2021 14:38:41 +0800
> 
> >>>>> "EZ" == Eli Zaretskii <eliz@gnu.org> writes:
> EZ> You mean, what Emacs will write into the init file to save your
> EZ> customizations?
> 
> Yes.
> 
> EZ> Why is that needed?
> 
> So the user can be in full control. RMS knows the feeling.

The user _is_ in control, you are just annoyed by the way this can be
done now.

> The user wants a piece of code that he can stick into his .emacs,
> safe from having to fight with a robot on who can edit a file.
> The user wants to put it into a file that only he is editing.

See the variable custom-file, through which you can control into which
file Emacs will write the customization form when you click Save.

> EZ> If you want to customize your
> EZ> faces in Lisp, the recommended way is to use set-face-attribute
> EZ> instead, not custom-set-faces.
> 
> OK, good. then have the snippet be a set-face-attribute snippet.
> 
> The documentation would be: "Here is a snippet you can paste into your
> .emacs file manually, if you don't feel comfortable allowing the robot
> maintain your customizations."

Sounds like too much effort for very little gain to me.