[MacPorts] #43549: bind9 @9.10.0_2 fails to start due to file ownership

[MacPorts]

#43549: bind9 @9.10.0_2 fails to start due to file ownership
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  Reporter:  jmr@…    |      Owner:  dluke@…
      Type:  defect   |     Status:  closed
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.2.1
Resolution:  wontfix  |   Keywords:
      Port:  bind9    |
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Comment (by dluke@…):

 I added some text in r119741 (it does seem pretty arbitrary when we care
 or don't care about helping the user upgrade - see the mysql5 ->mysql51
 transition for an example of where I don't believe we do anything to help
 the end user and instead assume that they can just figure things out).

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Ticket URL: <https://trac.macports.org/ticket/43549#comment:5>
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