Parse sysctl settings from /etc/sysctl.conf.local after /etc/sysctl.conf if it exists.  This mirrors similar behavior for /boot/loader.conf and /etc/rc.conf.
Parse sysctl settings from /etc/sysctl.conf.local after /etc/sysctl.conf
if it exists.  This mirrors similar behavior for /boot/loader.conf and
/etc/rc.conf.

Obtained from:	Yahoo!
MFC after:	1 week

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase