bug#31466: 27.0.50; customize-apropos: Separate package name from its description

[Eli Zaretskii]

> From: Tino Calancha <tino.calancha@gmail.com>
> Date: Wed, 16 May 2018 12:51:01 +0900
> 
> emacs -Q -l dired-x
> M-x customize-apropos dired-x RET
> 
> ;; Last line of the buffer is:
> Dired XExtended directory editing (dired-x).
> 
> ;; It reads better if the package name is separated from
> ;; the package description.  For instance:
> 
> Dired X: Extended directory editing (dired-x).
> 
> ;; Following patch shows the line as:
> Dired X:Extended directory editing (dired-x).
> 
> ;; Without the extra space because looks a bit ugly in the link.
> ;; If someone knows a way to add the extra space out of the link,
> ;; that would be better.

I think customize-group does a better job in presenting similar
lists.  It uses :align-to display spec for that; can customize-apropos
do something similar?  E.g., try "M-x customize-group RET RET".

Thanks.