[MacPorts] #38638: update to mosh-1.2.4

[MacPorts]

#38638: update to mosh-1.2.4
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  Reporter:  tpyro@…  |      Owner:  quentin@…
      Type:  update   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:  haspatch
      Port:  mosh     |
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Comment (by quentin@…):

 There's also a dependency change needed for mosh 1.2.4. I think we can
 drop port:p5.12-io-tty from depends_lib.

 I'll try to make a suitable patch in the next day or two.

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Ticket URL: <https://trac.macports.org/ticket/38638#comment:4>
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