linum-mode in Emacs 29.1

[lrfinotti]

Using Debian Sid's version of Emacs (29.1 29.1+1-4), I get:

Error (use-package): git-gutter-fringe/:catch: Symbol’s value as variable is void: global-linum-mode

linum-mode seems to be deprecated now in favor of display-line-numbers-mode...

And, of course, the fringe marks for add/changed/deleted do not show.

My configuration is very simple:

(use-package git-gutter-fringe
  :config
  (global-git-gutter-mode))

[may]

See emacsorphanage/git-gutter#226 (comment) for discussion, and a workaround.