Include the <sys/sysproto.h> header which includes the prerequisite header for AUE_NULL.
Include the <sys/sysproto.h> header which includes the prerequisite header
for AUE_NULL.

Approved by: re (kensmith)

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