[MacPorts] #56979: MacVim @8.1.snapshot147_1: Please add python37 variant

[MacPorts]

#56979: MacVim @8.1.snapshot147_1: Please add python37 variant
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 Reporter:  inyeollee        |      Owner:  (none)
     Type:  request          |     Status:  new
 Priority:  Normal           |  Milestone:
Component:  ports            |    Version:  2.5.3
 Keywords:  macvim python37  |       Port:  macvim
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Ticket URL: <https://trac.macports.org/ticket/56979>
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