New review comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/pull/24038#discussion_r465440328

Comment:
> I'm considering greping the /etc/ly/config.ini file for the tty number and using that in the arguments passed to /usr/bin/ly.

I prefer the user configuring this manually, with you leaving sensible defaults. Otherwise it becomes a little too magical.