New review comment by cinerea0 on void-packages repository

https://github.com/void-linux/void-packages/pull/24038#discussion_r465142465

Comment:
7 is the tty that all (as far as I know) desktop environments launch on. With the previous default tty of 2, users would run into a scenario where they would log in via `ly` and receive no feedback that it had succeeded; they would need to manually switch to tty7 after logging in.