Add missing period at the end of the error message
Add missing period at the end of the error message

Submitted by:	pjd
Approved by:	cperciva (implicit)
MFC after:	3 days
X-MFC-With:	r235201

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