pfPorts/openvpn22: Port sync, probable security fix (FreeBSD Ports r319579)

Straight integration of upstream diff, OpenVPN 2.2.x is used in pfSense 2.0.x.

Upstream message, r319579:
Author: mandree <mandree@FreeBSD.org>
Date:   Sat Jun 1 16:47:41 2013 +0000

    - Backport fix for CVE-2013-2061 to openvpn22 and openvpn20;
      while it is unclear whether it affects OpenSSL-builds at all.
      Let's play it safe.
    - Reference CVE-2013-2061 name in OpenVPN's VuXML entry
    - Mark 2.0.9_4 <= openvpn < 2.1.0 and 2.2.2_2 < openvpn < 2.3.0 not vulnerable
    - Mark openvpn22 deprecated and to expire 2013-09-01.
      (openvpn20 is already marked to expire 2013-07-11.)

    Security:   CVE-2013-2061
    Security:   92f30415-9935-11e2-ad4c-080027ef73ec
Merge pull request #119 from matsimon/openvpn-2.2.2_2

pfPorts/openvpn22: Port sync, probable security fix (FreeBSD Ports r3195...