[MacPorts] #34855: Update nmh port for 1.5 release

[MacPorts]

#34855: Update nmh port for 1.5 release
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 Reporter:  kenh@…          |       Owner:  macports-tickets@…                   
     Type:  update          |      Status:  new                                  
 Priority:  Normal          |   Milestone:                                       
Component:  ports           |     Version:  2.1.1                                
 Keywords:  maintainer      |        Port:  nmh                                  
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Comment(by kenh@…):

 Ok, I've attached a patch for the current Portfile which I believe
 addresses all of the issues you brought up.

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Ticket URL: <https://trac.macports.org/ticket/34855#comment:4>
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