Description of problem:
Presently the Zabbix init scripts do not load generalized options from a central init script.  The following two lines add such a capability.  This is most useful should someone wish to run the Zabbix server/agent with a nice level other than the default 0.

Version-Release number of selected component (if applicable):
All

Note:
The following code segment has been tested to work the the zabbix agent start script only.  In my case I added it at line 27.

Code:
if [ -e /etc/sysconfig/zabbix ]; then
       . /etc/sysconfig/zabbix
fi