[Centos] missing redhat-rpm-config?

[joey at clean.q7.com (Joe Pruett)]

i just did a full (everything) centos 4 install and afterwards ran a 'yum
list available' and saw the normal packages that have hardware specific 
version (openssl, glibc, kernels, etc), but also noticed redhat-rpm-config 
wasn't installed.  i thought maybe it was overriden by a centos thing and 
ignored it.  but then later i was playing with the kernel .src.rpm and it 
wouldn't build without redhat-rpm-config.  so i installed it and things 
were fine.

i see that package listed in comps.xml in the development-tools group.  
any clues?  or just a weird hiccup on my machine?