MFC	r278791: Reuse value of cursize instead of recalculating.
MFC	r278791:
Reuse value of cursize instead of recalculating.

Reported by:	Clang static checker

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