Update gentoo init script

[Erton]

The gentoo init scripts is outdated for new zabbix installs and not looks like other gentoo init scripts, a update suggetion looks like:

zabbix-server:

#!/sbin/runscript
#
# Zabbix server start/stop script.
#
# Written by A.Tophofen
# Revised by E.Ossandón
DESC="Zabbix server"
NAME=zabbix_server
DAEMON=/usr/local/sbin/$NAME
PID=/tmp/$NAME.pid

depend() {
	need net
}

start() {
	ebegin "Starting $DESC"
	start-stop-daemon --start -c zabbix:zabbix --exec $DAEMON
	eend $?
}

stop() {
	ebegin "Stopping $DESC"
	start-stop-daemon --stop -u zabbix --pidfile $PID
	eend $?
}

zabbix-agentd:

#!/sbin/runscript
#
# Zabbix agent start/stop script.
#
# Written by A.Tophofen
# Revised by E.Ossandón
DESC="Zabbix agent"
NAME=zabbix_agentd
DAEMON=/usr/local/sbin/$NAME
PID=/tmp/$NAME.pid

depend() {
	need net
}

start() {
	ebegin "Starting $DESC"
	start-stop-daemon --start -c zabbix:zabbix --exec $DAEMON
	eend $?
}

stop() {
	ebegin "Stopping $DESC"
	start-stop-daemon --stop -u zabbix --pidfile $PID
	eend $?
}

Greetings