[MacPorts] #43219: Upgrade tmux to 1.9

[MacPorts]

#43219: Upgrade tmux to 1.9
-------------------------+---------------------
  Reporter:  justrafi@…  |      Owner:  yeled@…
      Type:  update      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  tmux        |
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Changes (by macsforever2000@…):

 * keywords:  tmux 1.9 =>
 * owner:  macports-tickets@… => yeled@…
 * version:  2.2.1 =>


Comment:

 In the future, please Cc the port maintainers ({{{port info --maintainers
 tmux}}}).

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Ticket URL: <https://trac.macports.org/ticket/43219#comment:1>
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