Feature request: translatable process_form_submission hooks

[lucasmoeskops]

Just adding it here because I think this will be useful.

process_form_submission hooks currently take their name directly from the function name. For UI friendliness and i18n purposes it would be nice if it could be a translatable string.

Maybe an optional fn.short_description = _('My translatable hook name') on the hooked function would suffice.