[MacPorts] #50572: boost @1.59.0 Update to to 1.60.0

[MacPorts]

#50572: boost @1.59.0 Update to to 1.60.0
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  Reporter:  crmoore@…  |      Owner:  ryandesign@…
      Type:  update     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:             |   Keywords:
      Port:  boost      |
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Comment (by uri@…):

 Oh, I see. Let me take a look at the Portfile, and get back within a day
 or two if I find that I can handle the patch.

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Ticket URL: <https://trac.macports.org/ticket/50572#comment:10>
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