dhcrelay does not have an initscript. It should. I've attached one possible way to do this. A few very terse notes: 1) should dhcrelay be a separate package? Possibly yes, to be able to make it conflict with dhcpd. 2) /etc/sysconfig/dhcpd vs /etc/sysconfig/dhcrelay? 3) DHCRELAYARGS vs DHCRELAYARGS + DHCRELAY_ADDRESSES ?
Created attachment 55184 [details] one possible way to provide dhcrelay in initscripts.
dsainty resolved this in 3.0pl1-2