[MacPorts] #37212: json-c: update to 0.10

[MacPorts]

#37212: json-c: update to 0.10
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  Reporter:  ryandesign@…  |      Owner:  lharple@…
      Type:  update        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:  haspatch
      Port:  json-c        |
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Comment (by brian.andrew@…):

 Can remove.  I just wanted to give port maintainers and users an easy way
 to see how the upcoming changes might affect them.

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Ticket URL: <https://trac.macports.org/ticket/37212#comment:6>
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