[MacPorts] #60531: asciidoc @9.0.0rc2_0 breaks version checks

[MacPorts]

#60531: asciidoc @9.0.0rc2_0 breaks version checks
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  Reporter:  fhgwright  |      Owner:  neverpanic
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.6.2
Resolution:             |   Keywords:
      Port:  asciidoc   |
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Comment (by kencu):

 is there a reason to keep the (apparently) dead {{{asciidoc}}} when their
 website says everyone should move to {{{asciidoctor}}} and that is already
 in MacPorts?

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Ticket URL: <https://trac.macports.org/ticket/60531#comment:3>
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