yum-rhn-plugin creates creates a file at
/var/spool/up2date/loginAuth.pkl that caches login information. If the
contents of this file were to become corrupt, attempts to log in would
result in a 404 error. Now, yum-rhn-plugin deletes this file at the end
of each transaction and creates a new copy the next time that yum is run.
Renewing this file ensures that cached login information is current and