Draft: debian/rules: if the loglevel is too high, then the kernel will overwrite the...

debian/rules: if the loglevel is too high, then the kernel will overwrite the login prompt with its messages

Marked as draft as this needs testing. It's more of a proof-of-concept right now.

This is to be considered for inclusion in Forky.

Thanks @bremner for the nudge to do it like this.