Nuke a couple of unnecessary assigments.  Nothing uses the values of rstart and rend after this point.
Nuke a couple of unnecessary assigments.  Nothing uses the values of rstart
and rend after this point.

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