Steps to reproduce:
- open /var/log/zabbix/zabbix_server.log:
Problem: -i is set internally according to the ./src/libs/zbxicmpping/icmpping.c in get_interval_option:
Interval should be recalculated if for example fping chnaged version from 4.X to 3.X and server was not restarted.
Correct documentation with notes about interval used and how it's calculated.