[MacPorts] #38970: afio: upgrade to 2.5.1

[MacPorts]

#38970: afio: upgrade to 2.5.1
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  Reporter:  michael.klein@…  |      Owner:  macports-tickets@…
      Type:  update           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:  2.1.3
Resolution:                   |   Keywords:  haspatch maintainer
      Port:  afio             |
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Comment (by egall@…):

 whitespace and content changes usually get done separately

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Ticket URL: <https://trac.macports.org/ticket/38970#comment:1>
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