[MacPorts] #45227: doxygen: fix livecheck

[MacPorts]

#45227: doxygen: fix livecheck
--------------------------+---------------------
 Reporter:  ryandesign@…  |      Owner:  css@…
     Type:  defect        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.3.1
 Keywords:                |       Port:  doxygen
--------------------------+---------------------
 {{{
 $ port livecheck doxygen
 Error: cannot check if doxygen was updated (The requested URL returned
 error: 404 Not Found)
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/45227>
MacPorts <http://www.macports.org/>
Ports system for OS X