This script adds the suicide feature of GTA Online.
You can commit suicide by using /suicide command. Your character will shoot itself if you're holding a pistol and take pills otherwise.
Installing
Put the files you downloaded in their respective places
Add require('suicide') to client_packages/index.js
All done
I'm pretty sure the built in rage chat doesn't allow you to do that because others on the server would then be able to use the same linebreak and obviously abuse chat and make really long chat messages. If you want such a feature I'd make your own chat, otherwise just make multiple lines of player.outputChatBox