[MacPorts] #39412: Please document active_variant portgroup

[MacPorts]

#39412: Please document active_variant portgroup
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  Reporter:  thibaut@…    |      Owner:  macports-tickets@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  guide        |    Version:
Resolution:               |   Keywords:
      Port:               |
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Changes (by mf2k@…):

 * owner:  markd@… => macports-tickets@…
 * version:  2.1.3 =>


Comment:

 markd has retired. See #44782.

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Ticket URL: <https://trac.macports.org/ticket/39412#comment:3>
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