Postfix file ownership problem

[Jakob Breivik Grimstveit]

Why do I get this error about files with wrong ownership? Tried
reinstalling, but it did not help...

# /usr/local/etc/rc.d/postfix restart
postfix/postfix-script: stopping the Postfix mail system
postfix/postfix-script: warning: not owned by group maildrop:
/usr/local/sbin/postqueue
postfix/postfix-script: warning: not owned by group maildrop:
/usr/local/sbin/postdrop
postfix/postfix-script: warning: not set-gid or not owner+group+world
executable: /usr/local/sbin/postqueue
postfix/postfix-script: warning: not set-gid or not owner+group+world
executable: /usr/local/sbin/postdrop
postfix/postfix-script: starting the Postfix mail system

$ pkg info|grep -i postfix
postfix-2.11.1_4,1             Secure alternative to widely-used Sendmail
postfix-base-2.12.20140709_2,4 Secure alternative to widely-used Sendmail

$ uname -a
FreeBSD core2.grimstveit.no 10.0-RELEASE-p9 FreeBSD 10.0-RELEASE-p9 #1
r271669: Tue Sep 16 12:23:45 CEST 2014
root at core2.grimstveit.no:/usr/obj/usr/src/sys/CORE2
 amd64


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    Jakob Breivik Grimstveit | +47 4829 8152
    http://grimstveit.no/jakob