bug#64871: 30.0.50; [FR] Add command and menu item to open user init file

[Drew Adams]

> >   "Top-level groups of customizable options, and their descriptions."
> >   "Tree-like browser of all the groups of customizable options."
> 
> I agree that it is much more accurate.
> Then, may it be acceptable to change the menu names to:
> 1. "Customize Emacs"
> 2. "Tree view of all customizations"
> 
> These are a bit more familiar (IMHO) and we still retain more accurate
> popup text.

FWIW:

1. "customizations" includes anything a
user does to customize Emacs, which goes way
beyond what Customize does.

2. A user "option" is a variable you can set
using Customize.  Customize lets you configure
both options and faces.  The word "option"
doesn't cover both (in Emacs).  AFAIK, Emacs
hasn't chose a term for both - words such as
"setting" and "preference" have been suggested
in the past, but nothing was adopted, IIRC.