Tag the Xen iSCSI modules with `iscsi' in the md.x86 lists.
Enable puffs
Don't try to extend the offset range on 32 bit machines by treating negative
offsets as positive. It is just confusing.
Rewrite arc4random(3) with ChaCha20-based PRNG and per-thread state.

Explain the security model in the man page.

No more RC4!

XXX pullup to netbsd-6, netbsd-5
Grammar.