Add verbiage to the description of the noexec mount option clarifying that it really wasn't intended as a security feature.
Add verbiage to the description of the noexec mount option clarifying
that it really wasn't intended as a security feature.

Wording mostly by: simon
Discussed with:	secteam

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