[MacPorts] #56387: ola: protobuf3-cpp patches + update

[MacPorts]

#56387: ola: protobuf3-cpp patches + update
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  Reporter:  pmetzger  |      Owner:  nomis52
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:
      Port:  ola       |
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Comment (by pmetzger):

 Hey guys! Are you still maintaining the Ola port? I'm tempted to file a
 "port abandoned" ticket...

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Ticket URL: <https://trac.macports.org/ticket/56387#comment:3>
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