bug#53362: [External] : bug#53362: 29.0.50; [PATCH] Make Completions sorting a user option

[Drew Adams]

See library sortie.el.

* Description: https://www.emacswiki.org/emacs/Sortie

* Code: https://www.emacswiki.org/emacs/download/sortie.el

You can define sort orders and choose among them on the fly.

Different sort orders are appropriate for different operations, different sets 
of completion candidates, and different use cases/contexts and users.

A user option to choose a preferred sort order is at best appropriate for an 
overall _default_ sort order.

It could also be a place to hold a set of sort orders, including orders defined 
by a user.  But on its own, it can't deal with the need to be able to change 
sort orders anytime.