[MacPorts] #53108: openssh: Update to 7.6p1

[MacPorts]

#53108: openssh: Update to 7.6p1
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  Reporter:  danielluke  |      Owner:  Ionic
      Type:  update      |     Status:  accepted
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  openssh     |
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Changes (by Schamschula):

 * Attachment "Portfile" added.

 Portfile for 7.6p1 only default variant fixed

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Ticket URL: <https://trac.macports.org/ticket/53108>
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