Fix two typos.  Using "-eq" instead of "=" in a [ caused an error when an entry in /etc/sysctl.conf didn't exist.  Fixing this exposed a minor typo "exits" vs. "exist".
Fix two typos.  Using "-eq" instead of "=" in a [ caused an error when
an entry in /etc/sysctl.conf didn't exist.  Fixing this exposed a minor
typo "exits" vs. "exist".

However, there doesn't appear to be any provision to run this with
the "lastload" argument, meaning that the error will never appear.

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