Document that rc_sys_v{1,2} should not be used outside of OpenRC.
Document that rc_sys_v{1,2} should not be used outside of OpenRC.

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