[MacPorts] #32428: PortGroup muniversal not documented

[MacPorts]

#32428: PortGroup muniversal not documented
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  Reporter:  abarnert@…   |      Owner:  markd@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  guide        |    Version:  2.0.3
Resolution:               |   Keywords:
      Port:               |
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Comment (by egall@…):

 I found a user who could've benefitted from more documentation for the
 muniversal portgroup in #38995

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Ticket URL: <https://trac.macports.org/ticket/32428#comment:3>
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