Also some minor style cleanups.
tree for two or more years now), except in a few places where there's code to be compatible with older versions of FreeBSD.
network layer (ether). - Don't abuse module names to facilitate ifconfig module loading; such abuse isn't really needed. (And if we do need type information associated with a module then we should make it explicit and not use hacks.)
Submitted by: Denis I. Timofeev <timofeev@granch.ru> MFC after: 1 week
