最近在 FreeBSD 10.x 上发现了开箱即用的主题（使用 KDE4）：
[user@fbsd10] /home/user% su
Password:
su: Sorry
[user@fbsd10] /home/user% sudo csh
Password:
Sorry, user user is not allowed to execute '/bin/csh' as root on fbsd10.
[user@fbsd10] /home/user% pkexec csh
==== AUTHENTICATING FOR org.freedesktop.policykit.exec ===
Authentication is needed to run `/bin/csh' as the super user
Authenticating as: user
Password: [entered "user"s password]
==== AUTHENTICATION COMPLETE ===
[root@fbsd10] ~# id
uid=0(root) gid=0(wheel) groups=0(wheel),5(operator)
该文件看起来像是造成这种行为的原因：
/usr/local/share/polkit-1/actions/org.freedesktop.policykit.policy
难道我做错了什么？