ports/185635: Fix bug in ptree. There were situations where ptree shows duplicated processes in output.

Fri Jan 10 21:46:24 UTC 2014

Synopsis: Fix bug in ptree. There were situations where ptree shows duplicated processes in output.

Responsible-Changed-From-To: freebsd-ports-bugs->jgh
Responsible-Changed-By: jgh
Responsible-Changed-When: Fri Jan 10 21:46:23 UTC 2014
Responsible-Changed-Why: 
I'll take it.

http://www.freebsd.org/cgi/query-pr.cgi?pr=185635