hier(7) does not describe the /var/state directory. /var/state is described in fhs-5.11.1 (http://www.pathname.com/fhs/2.0/fhs-5.11.1.html) and is used by the isc dhcp suite, among others.
assigned to teg
This man page describes FHS 1.2, not FHS 2.x It needs to be rewritten to a modern FHS, though