[MacPorts] #53461: port self update fails for 2.4.0 on OS X 10.12.3

[MacPorts]

#53461: port self update fails for 2.4.0 on OS X 10.12.3
----------------------+-------------------
  Reporter:  rgacote  |      Owner:
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  base     |    Version:  2.4.0
Resolution:           |   Keywords:
      Port:           |
----------------------+-------------------
Changes (by mf2k):

 * keywords:  self update =>
 * component:  ports => base


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Ticket URL: <https://trac.macports.org/ticket/53461#comment:1>
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