[MacPorts] #49635: qgis: update to 2.12

[MacPorts]

#49635: qgis: update to 2.12
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  Reporter:  cmutel@…  |      Owner:  macports-tickets@…
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.3.4
Resolution:            |   Keywords:
      Port:  qgis      |
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Comment (by cmutel@…):

 Sorry, also need to add a dependency on qca-ossl port. See updated patch
 file.

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Ticket URL: <https://trac.macports.org/ticket/49635#comment:1>
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