[MacPorts] #52227: go @1.7 upgrade to upstream 1.7.1 and self-bootstrap

[MacPorts]

#52227: go @1.7 upgrade to upstream 1.7.1 and self-bootstrap
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  Reporter:  leonardo.schenkel@…  |      Owner:  macports-tickets@…
      Type:  update               |     Status:  new
  Priority:  Normal               |  Milestone:
 Component:  ports                |    Version:  2.3.4
Resolution:                       |   Keywords:
      Port:  go                   |
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Comment (by leonardo.schenkel@…):

 I noticed I made a mistake; it only worked on my environment because I
 previously had go 1.7 installed (from before the upgrade to Sierra). My
 Portfile does not work in a clean environment. I will work on a solution
 and update the patch afterwards.

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Ticket URL: <https://trac.macports.org/ticket/52227#comment:1>
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