[MacPorts] #56779: iTerm2 @3.1.6: update to 3.1.7

[MacPorts]

#56779: iTerm2 @3.1.6: update to 3.1.7
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  Reporter:  l2dy    |      Owner:  markemer
      Type:  update  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:  security
      Port:  iTerm2  |
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Comment (by markemer):

 Famous last words. For some reason 3.1.7 vomits all over the place trying
 to build. I'm going to get a clean 10.13 system in a VM and try to build
 there. I should set that up anyway for testing.

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Ticket URL: <https://trac.macports.org/ticket/56779#comment:2>
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