[MacPorts] #15020: Updated swi-prolog portfile to version 5.6.53

[MacPorts]

#15020: Updated swi-prolog portfile to version 5.6.53
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  Reporter:  pmoura at logtalk.org  |       Owner:  macports-tickets at lists.macosforge.org
      Type:  enhancement         |      Status:  closed                               
  Priority:  Normal              |   Milestone:  Port Updates                         
 Component:  ports               |     Version:  1.6.0                                
Resolution:  invalid             |    Keywords:                                       
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Changes (by mcalhoun at macports.org):

  * status:  new => closed
  * resolution:  => invalid

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Ticket URL: <http://trac.macosforge.org/projects/macports/ticket/15020#comment:2>
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