[MacPorts] #18923: libidn: update to version 1.13

[MacPorts]

#18923: libidn: update to version 1.13
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 Reporter:  devans@…             |       Owner:  olaf@…            
     Type:  enhancement          |      Status:  new               
 Priority:  Normal               |   Milestone:  Port Updates      
Component:  ports                |     Version:  1.8.0             
 Keywords:                       |        Port:  libidn            
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 Attached simple patch updates libidn to version 1.13

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Ticket URL: <http://trac.macports.org/ticket/18923>
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