[MacPorts] #55575: port -vst install fails with "/usr/bin/tar: No such file or directory"

[MacPorts]

#55575: port -vst install fails with "/usr/bin/tar: No such file or directory"
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  Reporter:  janstary  |      Owner:
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  base      |    Version:  2.4.99
Resolution:            |   Keywords:  highsierra
      Port:            |
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Comment (by janstary):

 Without COPYFILE_CLONE, copyfile(3) seems to copy the destination file OK.
 https://lists.macports.org/pipermail/macports-
 dev/2017-December/037091.html

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Ticket URL: <https://trac.macports.org/ticket/55575#comment:8>
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