[MacPorts] #31087: upgrade gnupg2 from 2.0.17 to 2.0.18

[MacPorts]

#31087: upgrade gnupg2 from 2.0.17 to 2.0.18
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 Reporter:  carsomyr@…          |       Owner:  macports-tickets@…                   
     Type:  update              |      Status:  new                                  
 Priority:  Normal              |   Milestone:                                       
Component:  ports               |     Version:  2.0.99                               
 Keywords:  haspatch            |        Port:  gnupg2                               
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 Please find the 3 Portfile patches attached.  I believe this would also
 close #30293.

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Ticket URL: <https://trac.macports.org/ticket/31087>
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