check mailman installation

[thufir]

Oddly:

thufir at dur:~$ 
thufir at dur:~$ sudo /usr/lib/mailman/bin/check_perms 
/var/lib/mailman/cron bad group (has: root, expected list)
/var/lib/mailman/logs bad group (has: root, expected list)
/var/lib/mailman/icons bad group (has: root, expected list)
/var/lib/mailman/mail bad group (has: root, expected list)
/var/lib/mailman/locks bad group (has: root, expected list)
/var/lib/mailman/Mailman bad group (has: root, expected list)
/var/lib/mailman/cgi-bin bad group (has: root, expected list)
/var/lib/mailman/templates bad group (has: root, expected list)
/var/lib/mailman/bin bad group (has: root, expected list)
/var/lib/mailman/scripts bad group (has: root, expected list)
Problems found: 10
Re-run as list (or root) with -f flag to fix
thufir at dur:~$ 


Is this some sort of installation problem?  I don't get it, I installed 
from apt.  Does this indicate that something went wrong with the install?


-Thufir