[MacPorts] #26555: watch 3.2.8 doesn't honor build_arch

[MacPorts]

#26555: watch 3.2.8 doesn't honor build_arch
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 Reporter:  jon.hermansen@…          |       Owner:  macports-tickets@…                   
     Type:  defect                   |      Status:  new                                  
 Priority:  Normal                   |   Milestone:                                       
Component:  ports                    |     Version:                                       
 Keywords:  haspatch                 |        Port:  watch                                
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Comment(by ryandesign@…):

 Let's handle the universal variant, too.

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Ticket URL: <https://trac.macports.org/ticket/26555#comment:1>
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