[MacPorts] #23317: mail/libidn upgrade version to 1.16

[MacPorts]

#23317: mail/libidn upgrade version to 1.16
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 Reporter:  rmsfisher@…             |       Owner:  olaf@…            
     Type:  request                 |      Status:  new               
 Priority:  Normal                  |   Milestone:                    
Component:  ports                   |     Version:  1.8.2             
 Keywords:  libidn upgrade          |        Port:  libidn            
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 Livecheck indicates that a new release for libidn is available.  The port
 does not have open maintainership.  Please find attached a diff for the
 Portfile that upgrades to 1.16.  This modification destrooted properly for
 me.

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Ticket URL: <http://trac.macports.org/ticket/23317>
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