[MacPorts] #55557: mkvtoolnix: Update to the latest version

[MacPorts]

#55557: mkvtoolnix: Update to the latest version
-------------------------+------------------------
  Reporter:  MaximKraev  |      Owner:  ryandesign
      Type:  update      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:  haspatch
      Port:  mkvtoolnix  |
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Comment (by ctreleaven):

 Note that lines 24-26 should be removed now:

 {{{
 # Argh, switching master_sites acted like a stealth upgrade?
 # remove following after next upstream release
 dist_subdir         ${name}/${version}_1
 }}}

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Ticket URL: <https://trac.macports.org/ticket/55557#comment:8>
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