[MacPorts] #39051: The example portfile in the "doc" folder of base should pass lint

[MacPorts]

#39051: The example portfile in the "doc" folder of base should pass lint
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  Reporter:  egall@…      |      Owner:  macports-tickets@…
      Type:  defect       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  base         |    Version:  2.1.3
Resolution:               |   Keywords:
      Port:  exampleport  |
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Comment (by egall@…):

 If we're going to remove the example port, then I'd at least like to see
 my portfile for `portfile-gen` to be committed to trunk, so that we can
 tell users who want to see an example port to just use `portfile-gen` to
 output one. (My ticket for it is #37797 btw)

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Ticket URL: <https://trac.macports.org/ticket/39051#comment:2>
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