[MacPorts] #52989: buildbot: allow building 'pseudoports'

[MacPorts]

#52989: buildbot: allow building 'pseudoports'
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  Reporter:  mojca           |      Owner:  admin@…
      Type:  enhancement     |     Status:  new
  Priority:  Low             |  Milestone:
 Component:  server/hosting  |    Version:
Resolution:                  |   Keywords:  buildbot
      Port:                  |
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Comment (by ryandesign):

 Which pseudo-portnames would be useful to support? On the old system we
 only supported "all" but maybe it would be better to use "uninstalled".

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Ticket URL: <https://trac.macports.org/ticket/52989#comment:13>
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