[MacPorts] #37949: rev-upgrade report does not explain missing slices

[MacPorts]

#37949: rev-upgrade report does not explain missing slices
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  Reporter:  jeremyhu@…  |      Owner:  jmr@…
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:  MacPorts Future
 Component:  ports       |    Version:  2.1.99
Resolution:              |   Keywords:  rev-upgrade
      Port:              |
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Comment (by cal@…):

 If you ran port rev-upgrade with the debug flag, you'd see the reasons.

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Ticket URL: <https://trac.macports.org/ticket/37949#comment:1>
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