[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@…):

 It uses it at runtime. ($prefix/bin/mosh is a small Perl script that
 invokes ssh and mosh-client.)

 It's probably more convenient to use MacPorts's perl, so we don't have to
 test on ancient perl versions, but I'd hate for mosh to be the only reason
 someone pulled in MacPorts perl. I'm fine with whichever approach you want
 to go with.

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Ticket URL: <https://trac.macports.org/ticket/38638#comment:8>
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