[MacPorts] #64626: gtk-doc: add python310 variant

[MacPorts]

#64626: gtk-doc: add python310 variant
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  Reporter:  nerdling     |      Owner:  mascguy
      Type:  enhancement  |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  gtk-doc      |
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Changes (by nerdling):

 * type:  defect => enhancement
 * port:   => gtk-doc


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Ticket URL: <https://trac.macports.org/ticket/64626#comment:1>
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