[MacPorts] #29883: lingon: fix homepage in About box

[MacPorts]

#29883: lingon: fix homepage in About box
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 Reporter:  ryandesign@…             |       Owner:  bfulgham@…           
     Type:  defect                   |      Status:  new                  
 Priority:  Normal                   |   Milestone:                       
Component:  ports                    |     Version:                       
 Keywords:                           |        Port:  lingon               
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Comment(by ryandesign@…):

 There's no reason to remove the free version in MacPorts just because
 there's a non-free version in the App Store.

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Ticket URL: <https://trac.macports.org/ticket/29883#comment:2>
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