bug#47566: 28.0.50; diff-hl should use `repeat-mode' ... and not `smartrep'

[Juri Linkov]

> For those who don't want hints, they can use
>
>     (setq repeat-mode-helper #'ignore)
>
> For those who want hints, but do /not/ want the hints hogging the echo
> area, they could have their own custom helper like the one above,
> after replacing
>
>       (message mess)
>
> with
>
>       (tooltip-show mess)

This is implemented now, so you can customize it to disable messaging,
to do truncation of long messages, or to use tooltip-show, etc.

> I would also appreciate if you could assess adding the exit key as a
> property to the repeat mode symbol.

The exit key specific to some keymap can be easily added to that keymap.