[MacPorts] #24927: highlight: update to 3.4.0

[MacPorts]

#24927: highlight: update to 3.4.0
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  Reporter:  lists@…    |      Owner:  pjenvey@…
      Type:  update     |     Status:  reopened
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:             |   Keywords:  haspatch
      Port:  highlight  |
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Comment (by g5pw@…):

 Adding the perl variant to current highlight breaks the build, would you
 mind adding a patch against the current portfile?

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Ticket URL: <https://trac.macports.org/ticket/24927#comment:6>
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