[MacPorts] #53406: Update libudns to version 0.4

[MacPorts]

#53406: Update libudns to version 0.4
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  Reporter:  xrobin   |      Owner:
      Type:  update   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:  libudns  |
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Changes (by xrobin):

 * Attachment "Portfile.patch" added.

 Bump libudns to 0.4

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Ticket URL: <https://trac.macports.org/ticket/53406>
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