[MacPorts] #58465: geoexpress-sdk Portfile fails to parse on < 10.11

[MacPorts]

#58465: geoexpress-sdk Portfile fails to parse on < 10.11
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  Reporter:  lemzwerg        |      Owner:  Veence
      Type:  defect          |     Status:  assigned
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:
Resolution:                  |   Keywords:
      Port:  geoexpress-sdk  |
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Comment (by kencu):

 wrapping the error lines in a pre-fetch block should do do what's needed.

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Ticket URL: <https://trac.macports.org/ticket/58465#comment:2>
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