termencoding: change "need root" to "use root"
termencoding: change "need root" to "use root"

This allows root to be removed from the boot runlevel which is needed
sometimes when the root fs is mounted read-only.

Reported-By: Maxim Kammerer <a91dcbb4df49d8bfe0a9930d7ff911a4292ca1f5@dee.su>
X-Gentoo-Bug: 400921
X-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=400921

OpenRC/openrc,williamh/openrc,williamh/openrc,dwfreed/openrc,dwfreed/openrc,williamh/openrc,OpenRC/openrc,dwfreed/openrc,OpenRC/openrc