pub fn localized_command() -> CommandExpand description
Build a clap Command with about and per-argument help overridden by t! for the current locale.
If a cli.about or cli.help.<arg_id> key resolves to a translated string, it replaces the
English source doc; if the key is returned as-is (no translation), the English source doc is kept.
Must be called after the locale is set (before argument parsing).