smtp       inet  n       -       n       -       -       smtpd
    -o test1_process_name=smtpd
    -o test1_service_name=smtp
smtp       unix  n       -       n       -       -       smtp
    -o test2_process_name=smtp
    -o test2_service_name=smtp
./postconf: warning: ./master.cf: unused parameter: test1_service_name=$service_name
./postconf: warning: ./master.cf: unused parameter: test1_process_name=$process_name
./postconf: warning: ./master.cf: unused parameter: test2_service_name=$service_name
./postconf: warning: ./master.cf: unused parameter: test2_process_name=$process_name