`dev` and `prod` are just aliases, so this allows to just defer them to their counterparts.
`watch-poll` just adds one extra argument so the special option `--` allows to pass it to the `watch` script.
In https://github.com/laravel/laravel/pull/3641 was decided to use `127.0.0.1` instead of `localhost` to avoid DNS lookups
This change is to maintain consistency between `.env` and `database.php`