[MacPorts] #58309: NOP port upgrade outdated returns error status

[MacPorts]

#58309: NOP port upgrade outdated returns error status
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  Reporter:  fhgwright  |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  base       |    Version:  2.5.4
Resolution:             |   Keywords:
      Port:             |
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Comment (by fhgwright):

 It looks like that change made the message not be an error without fixing
 the exit status.

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Ticket URL: <https://trac.macports.org/ticket/58309#comment:2>
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