[MacPorts] #42647: Update libupnp to 1.6.19

[MacPorts]

#42647: Update libupnp to 1.6.19
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  Reporter:  ctreleaven@…  |      Owner:  ctreleaven@…
      Type:  update        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:  haspatch
      Port:  libupnp       |
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Comment (by ctreleaven@…):

 Tested with VLC and uShare under OS X 10.6.8.

 uShare requires fixes which I'll commit if the buildbots like my changes.

 Note that (rebuilt) VLC now lists available UPnP servers which is a step
 forward!  Console shows VLC throwing a bunch of warnings/errors while
 accessing uShare.  I believe this is more of a problem with uShare than
 VLC but I'll try to look into this more.  Again, I'll rev-bump VLC and
 VLC-devel if the libupnp change doesn't error on the buildbots.

 Committed in r126547

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Ticket URL: <https://trac.macports.org/ticket/42647#comment:7>
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