[MacPorts] #53404: `port upgrade outdated` changes colours in terminal emulation

[MacPorts]

#53404: `port upgrade outdated` changes colours in terminal emulation
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  Reporter:  ballapete  |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  base       |    Version:
Resolution:             |   Keywords:
      Port:             |
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Comment (by ballapete):

 The picture is taken on `macOS High Sierra, Version 10.13.6` in recent
 `emacs @28.2_0+x11 (active) requested_variants='+x11' platform='darwin 17'
 archs='x86_64' date='2022-09-21T13:03:19+0200'`. Works similarly in
 `Monterey`.

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Ticket URL: <https://trac.macports.org/ticket/53404#comment:13>
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