- Use strsep() instead of strtok(). - strdup() uses M_WAITOK, so we don't need to check it's return value   against NULL.
- Use strsep() instead of strtok().
- strdup() uses M_WAITOK, so we don't need to check it's return value
  against NULL.

MFC after:	2 weeks

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