ssh_explicit_bzero error on upgrade to 9.3-RELEASE-p8

[William Yardley]

On Wed, Jan 14, 2015 at 10:52:51PM -0800, William Yardley wrote:
> aura:# /etc/rc.d/sshd restart
> Performing sanity check on sshd configuration.
> /usr/sbin/sshd: Undefined symbol "ssh_explicit_bzero"

Sorry for the self-followup, but I also don't have a '/usr/lib/private'
*at all*, despite the fact that I upgraded to 9.3 from 9.2 using
freebsd-update. I also don't seem to have some other things mentioned
in:
http://freebsdfoundation.blogspot.com/2014/07/freebsd-93-release-now-available.html
(for example, my OpenSSH is version 6.2p2).

So it would seem that maybe I missed a post-reboot install step on one of my previous
upgrades (though I thought freebsd-update was supposed to figure that
out and resolve it if it managed to happen).

If that's the case, what's the safest way using binary updates to get my
system to where it should be, rather than to where it thinks it is?
Should I just get the 'base' tarball, or is there a better way?

w