4 Clause license? - Mailing list pgsql-hackers

The PostgreSQL group has recently had a patch submitted with a snippet
of code from FreeBSDs src/bin/mkdir/mkdir.c.

http://www.freebsd.org/cgi/cvsweb.cgi/src/bin/mkdir/mkdir.c?annotate=1.27

Is this intentionally under the 4 clause license or does the copyright
from the website (2 clause) applied to everything that is non-contrib?

http://www.freebsd.org/copyright/freebsd-license.html

Thanks,Rod