[MacPorts] #70319: openssh @9.8p1 broke some key types

[MacPorts]

#70319: openssh @9.8p1 broke some key types
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  Reporter:  fhgwright  |      Owner:  artkiver
      Type:  defect     |     Status:  assigned
  Priority:  High       |  Milestone:
 Component:  ports      |    Version:  2.9.3
Resolution:             |   Keywords:
      Port:  openssh    |
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Comment (by artkiver):

 If you want to create a variant that enables DSA support, you're welcome
 to submit a PR, but I would be against it.

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Ticket URL: <https://trac.macports.org/ticket/70319#comment:9>
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