[MacPorts] #37951: Upgrade prolog-mode.el to 1.24.

[MacPorts]

#37951: Upgrade prolog-mode.el to 1.24.
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  Reporter:  crossd@…        |      Owner:  phw@…
      Type:  update          |     Status:  new
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:
Resolution:                  |   Keywords:  haspatch
      Port:  prolog-mode.el  |
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Comment (by crossd@…):

 Noted about the email address requiring the site component; I'll remember
 that in the future.

 Please see the updated diff; I set dist_subdir and it takes care of the
 distribution file issue.  Thanks!

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Ticket URL: <https://trac.macports.org/ticket/37951#comment:3>
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