Use new zlib dependent code and verify it is working.
geom_uzip - tested - mkuzip, mdconfig, mount -r.
netgraph - not sure how to use/test.
mxge driver - I don't have one.
bxe driver - I don't have one.
link_elf.c/subr_compress - need a test plan.
subr_compress - tested.
misp - compile only.
zfs - tested.
zfs-boot - I don't use zfs boot.