[MacPorts] #56141: laszip: add long description

[MacPorts]

#56141: laszip: add long description
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  Reporter:  ryandesign  |      Owner:  Veence
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  laszip      |
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Comment (by ryandesign):

 Some MacPorts commands print the `description`, some print the
 `long_description`. It's a non-optional field.

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Ticket URL: <https://trac.macports.org/ticket/56141#comment:3>
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