The file /var/lib/ntp/drift is recreated by ntpd with owner and group ntp. In the RPM, it is listed with group root rather than group ntp, so "rpm --verify ntp" reports that it is in error. The RPM should be updated to list group ntp for this file.
hmm, I think, it is the other way round: $ rpm -qflv /var/lib/ntp/drift |fgrep drift -rw-r--r-- 1 ntp ntp 4 Aug 17 13:14 /var/lib/ntp/drift $ ls -l /var/lib/ntp/drift -rw-r--r-- 1 ntp root 6 19. Aug 15:25 /var/lib/ntp/drift
but thanks for spotting this!