in gplog/gplog.go [166:174]
func GetHeader(program string) string {
headerFormatStr := "%s:%s:%s:%06d-[%s]:-" // PROGRAMNAME:USERNAME:HOSTNAME:PID-[LOGLEVEL]:-
currentUser, _ := operating.System.CurrentUser()
user := currentUser.Username
host, _ := operating.System.Hostname()
pid := operating.System.Getpid()
header := fmt.Sprintf(headerFormatStr, program, user, host, pid, "%s")
return header
}