ports/113401: Update port: security/xca to version 0.6.3

[Mark Linimon]

Synopsis: Update port: security/xca to version 0.6.3

State-Changed-From-To: feedback->open
State-Changed-By: linimon
State-Changed-When: Sat Jun 9 04:00:02 UTC 2007
State-Changed-Why: 
With portmgr hat, approve the transfer of maintainership due to
maintainer-timeout (see ports/109045).

http://www.freebsd.org/cgi/query-pr.cgi?pr=113401