ports/148969: math/plplot update to 5.9.6

[pav at FreeBSD.org]

Synopsis: math/plplot update to 5.9.6

State-Changed-From-To: open->closed
State-Changed-By: pav
State-Changed-When: Wed Aug 4 23:48:51 UTC 2010
State-Changed-Why: 
Committed, thanks!

http://www.freebsd.org/cgi/query-pr.cgi?pr=148969