Move the check for enabled knobs further down in run_rc_command() so that bogus commands cause usage information to be printed instead of diagnostics about enabling the knob.
Move the check for enabled knobs further down in run_rc_command() so
that bogus commands cause usage information to be printed instead of
diagnostics about enabling the knob.

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