In daemonize.c, the ```openlog``` statement uses the name of the binary to set the syslog tag name.

For people running multiple Kamailio instances on the same host, it is desirable to use different tag names for each. E.g. if somebody is running an instance for HOMER, they might want to use a tag like ```homer-api``` for that instance.

This probably needs a new cfg parameter with a name like ```log_tag```