K 10
svn:author
V 6
marino
K 8
svn:date
V 27
2014-05-05T15:04:38.709804Z
K 7
svn:log
V 405
Replace "${OPSYS:tl}" with "freebsd" on 4 ports

The following 4 ports will not build correctly if certain variables
are not defined as "freebsd".  Defining them as "${OPSYS:tl}" caused
breakage on DragonFly for various reasons.  Harding the variables are
a no-op for FreeBSD but fixes the ports on DragonFly.

* games/ioquake3
* graphics/opendx
* science/cdf
* security/john

approved by:	portmgr (bapt)

END