[MacPorts] #52767: port lint should warn when modeline is missing

[MacPorts]

#52767: port lint should warn when modeline is missing
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  Reporter:  ryandesign   |      Owner:  macports-tickets@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  base         |    Version:  2.3.4
Resolution:               |   Keywords:
      Port:               |
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Comment (by jmroot):

 r-

 The patch in the PR warns in every case except where exactly the
 recommended modeline is on the first line. The request here is to warn
 only if the Portfile doesn't have a modeline. The existing variation in
 modelines is valid because indentation style is up to the maintainer, and
 because some maintainers use a custom Portfile syntax highlighting mode in
 their editor and set the file type to Portfile in the modeline to enable
 that.

 The other thing that lint should complain about is if the actual
 indentation doesn't match that declared in the modeline, but that might be
 difficult.

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Ticket URL: <https://trac.macports.org/ticket/52767#comment:3>
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