[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
 Keywords:  haspatch  |       Port:  sshguard
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 Patch attached.

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