Pull up following revision(s) (requested by khorben in ticket #943):
	external/bsd/pkg_install/dist/lib/pkg_signature.c: revision 1.2
Fixed installation of signed packages. Some variables part of struct
signature_archive were not initialized properly, therefore randomly
failing in the verify_signature_read_cb() callback.
Partly closes PR pkg/48194; pkgsrc needs to be updated as well.
"please commit" agc@
XXX pull-up to netbsd-6
Ticket 943.
Pull up following revision(s) (requested by spz in ticket #944):
	sys/netinet6/in6.c: revision 1.167 via patch
Include BRDADDR and NETMASK to the v4 ioctls we ban for v6; from FreeBSD.
Ticket 944.