[MacPorts] #60581: garbage error output from failed curl

[MacPorts]

#60581: garbage error output from failed curl
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  Reporter:  ryandesign  |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  base        |    Version:  2.6.2
Resolution:              |   Keywords:
      Port:              |
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Comment (by neverpanic):

 https://github.com/macports/macports-base/pull/186

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Ticket URL: <https://trac.macports.org/ticket/60581#comment:3>
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