[MacPorts] #51268: sshguard version bump to 1.6.4

[MacPorts]

#51268: sshguard version bump to 1.6.4
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  Reporter:  dluke@…   |      Owner:  pixilla@…
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.3.4
Resolution:            |   Keywords:  haspatch
      Port:  sshguard  |
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Comment (by pixilla@…):

 Thanks. It will be at least 12 hours before I can commit this. Go ahead
 and make the commit if you are so inclined.

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Ticket URL: <https://trac.macports.org/ticket/51268#comment:1>
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