[MacPorts] #53701: freeciv @2.5.5: upgrade to 2.5.6

[MacPorts]

#53701: freeciv @2.5.5: upgrade to 2.5.6
----------------------+------------------------
  Reporter:  JDLH     |      Owner:  ryandesign
      Type:  update   |     Status:  accepted
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:  freeciv  |
----------------------+------------------------
Changes (by ryandesign):

 * owner:   => ryandesign
 * status:  new => accepted
 * version:  2.4.0 =>
 * type:  defect => update


Comment:

 No need for a separate ticket for freeciv-x11. It is the same portfile as
 freeciv; both get updated at the same time.

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Ticket URL: <https://trac.macports.org/ticket/53701#comment:1>
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