[MacPorts] #53306: elixir @1.3.4: Update to 1.4.2

[MacPorts]

#53306: elixir @1.3.4: Update to 1.4.2
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  Reporter:  jhosteny  |      Owner:  me@…
      Type:  update    |     Status:  closed
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:  fixed     |   Keywords:  haspatch
      Port:  elixir    |
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Comment (by snarfmason):

 Sorry, I see it's been merged to github master. I need to update my ports
 tree apparently.

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Ticket URL: <https://trac.macports.org/ticket/53306#comment:9>
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