At the time of this writing, Open vSwitch official website suggests
http://openvswitch.org whose https couterpart uses a self-signed
certificate, but it redirects to http://www.openvswitch.org, which has a
working https equivalent.
Reported-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>