Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021

[Jean Louis]

* Eli Zaretskii <eliz@gnu.org> [2021-03-18 12:03]:
> Fair enough, but please include in NEWS a recipe to get back the old
> behavior.  Is the following enough?
> 
>   (require 'facemenu)
>   (define-key global-map "\M-o" 'facemenu-keymap)

Thank you, that is what I did not know. But I would rather define the
key only for enriched mode.

(require 'facemenu)
(define-key enriched-mode-map "\M-o" 'facemenu-keymap)

Do I really need to use `require' in init file for this?