[MacPorts] #54480: VLC: upgrade to 2.2.6 and FFmpeg 3

[MacPorts]

#54480: VLC: upgrade to 2.2.6 and FFmpeg 3
---------------------+---------------------------------
  Reporter:  RJVB    |      Owner:  l2dy
      Type:  update  |     Status:  closed
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:  fixed   |   Keywords:  haspatch maintainer
      Port:  VLC     |
---------------------+---------------------------------

Comment (by RJVB):

 Yes, the path:-style depspec should work too, with all the usual caveat
 emptors about how using a -devel port can break things in unforeseen (and
 typically unsupported ways). I'll fix that locally so it can go in with a
 future upgrade.

 As to fixing the other "problem", I find it difficult enough to fix my own
 dislikes already so won't even try fixing someone else's ;)

 port:VLC is a necessary evil for me, I'd be using an official build if it
 weren't for the fact that my KF5 ports require the phonon-vlc backend
 which means I need a libVLC that can be used from other applications than
 VLC itself. As long as nobody breaks that I don't really care what other
 changes are made to the Portfile (and might even merge obvious
 improvements into my own macstrop copy).

--
Ticket URL: <https://trac.macports.org/ticket/54480#comment:22>
MacPorts <https://www.macports.org/>
Ports system for macOS