Correct a typo and make the documentation more mdoc(7) complaint.
Correct a typo and make the documentation more mdoc(7) complaint.

Pointed out by:	dd
Approved by:	murray (mentor)

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