User reported

I would like to use ipmiseld to gather SEL logs from a large number of
nodes (700+). Turns out that at some point, ipmiseld chokes if the
hostname argument is too long in ipmiseld.conf:
"""
Starting ipmiseld: Config File Error: overflow arg length on line 5
"""
The hostname argument is 569 characters long.

The issue is Conffile Arg max was 512 chars. 

Temporarily fixed by increasing to 1024 chars, but should refactor ipmiseld config to support multiple lines of 'hostname' argument, similar to ipmidetectd.