[MacPorts] #52441: Add dnsviz port

[MacPorts]

#52441: Add dnsviz port
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  Reporter:  casey@…     |      Owner:  macports-tickets@…
      Type:  submission  |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.3.4
Resolution:              |   Keywords:
      Port:  dnsviz      |
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Comment (by casey@…):

 Thanks - all done.  Please see new Portfile with applied changes.

 One minor comment with regard to the following:

 > * For ports that use the python portgroup but that provide apps, not
 python modules, specify only the single version of python that the port
 will use (or add variants to let the user choose which version of python
 they want, if that's important for this port).

 This makes sense.  For what it's worth the documentation is a bit
 misleading with the use of "default":

 > ... and python.versions defaults to the value of python.default_version
 ...

 (https://guide.macports.org/chunked/reference.portgroup.html)

 It does later say "automatically set", but "default" can be confusing even
 so.

 Thanks!

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Ticket URL: <https://trac.macports.org/ticket/52441#comment:2>
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