Unexpand TAILQ_FIRST(foo) == NULL to TAILQ_EMPTY(foo).
Unexpand TAILQ_FIRST(foo) == NULL to TAILQ_EMPTY(foo).

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