[MacPorts] #44243: Upgrade ARB 6.0-rc3 -> 6.0

[MacPorts]

#44243: Upgrade ARB 6.0-rc3 -> 6.0
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  Reporter:  matt.cottrell@…  |      Owner:  macports-tickets@…
      Type:  update           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:  2.3.1
Resolution:                   |   Keywords:  haspatch maintainer
      Port:  arb              |
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Comment (by matt.cottrell@…):

 I forgot to upload the revised version of this patch (patch-ARB-
 config.makefile.diff).  This one should work.

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Ticket URL: <https://trac.macports.org/ticket/44243#comment:4>
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