Changed some variable names in lf_addblock to make the code both understandable and conform to other conventions used in the file.
Changed some variable names in lf_addblock to make the code both
understandable and conform to other conventions used in the file.

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