[MacPorts] #34619: prevent use of unknown subports

[MacPorts]

#34619: prevent use of unknown subports
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  Reporter:  ryandesign  |      Owner:  macports-tickets@…
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:  MacPorts Future
 Component:  base        |    Version:  2.1.1
Resolution:              |   Keywords:
      Port:              |
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Changes (by kurthindenburg):

 * cc: kurthindenburg (added)


Comment:

 https://github.com/macports/macports-base/pull/28

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Ticket URL: <https://trac.macports.org/ticket/34619#comment:5>
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