Comment 6 for bug 149641

Note that fixing this bug is a necessary, but not a sufficient condition to make logcheck work on gutsy.

After fixing this manually, I still get one more failure later from logtail:
       File /var/log/syslog.offset cannot be created. Check your permissions: Permission denied

To solve this problem too, I had to manually create the offset files and make them owned by logcheck:
        sudo touch /var/log/syslog.offset /var/log/auth.log.offset
        sudo chown logcheck /var/log/syslog.offset /var/log/auth.log.offset

In addition, logtail when running as 'logcheck' cannot read files under /var/log which aren't world readable,
Fixing this required giving logtail a setgid and group adm:

        sudo chgrp adm /usr/sbin/logtail
        sudo chmod g+s /usr/sbin/logtail

only after fixing all the above logcheck finally works for me on gutsy.