Description of Problem:
The /etc/passwd file has "/bin/nologin" for the shell field in the "pcap"
entry (should be /sbin/nologin), and "/dev/null" for the "mailnull" and
"squid" entries (looks suspicious; should /dev/null be a shell?).
Version-Release number of selected component (if applicable):
These are both added by packages; please file against the individual packages.