[MacPorts] #70472: 'port fetch outdated' upgrades ports

[MacPorts]

#70472: 'port fetch outdated' upgrades ports
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  Reporter:  Lord-Kamina  |      Owner:  (none)
      Type:  defect       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  base         |    Version:  2.9.3
Resolution:               |   Keywords:
      Port:               |
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Comment (by jmroot):

 IMO the functionality of the gpg_verify portgroup is not something that
 belongs in Portfile code in the first place. It would make much more sense
 as an external helper script that the maintainer can run when updating the
 port.

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Ticket URL: <https://trac.macports.org/ticket/70472#comment:3>
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