[CentOS] Missing /etc/log/rpmpkgs

On one system I am missing /etc/log/rpmpkgs

I believe that this file is updated by some cron job, and maybe I just 
have not had this system powered up at the right time for the job to 
run.  Though I had thought that if a job was scheduled for a time the 
computer was off, it would run sometime soon (with some definition of 
'soon') once the system was on again.

On another system, I have /etc/log/rpmpkgs, but a rpm I installed from 
the karan testing repo is shown installed in /etc/log/yum.log but not in 
rpmpkgs.