[MacPorts] #55663: qpdf @6.0.0 upgrade

[MacPorts]

#55663: qpdf @6.0.0 upgrade
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  Reporter:  detlevd  |      Owner:
      Type:  update   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:  haspatch
      Port:  qpdf     |
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Comment (by detlevd):

 Skimming the ChangeLog further shows that qpdf was relicensed to the
 //Apache License, Version 2.0// (Apache-2), replacing the previous (said
 to be similar) Artistic-2.

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Ticket URL: <https://trac.macports.org/ticket/55663#comment:4>
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