[MacPorts] #51937: ldns @1.6.16, Update to version 1.6.17

[MacPorts]

#51937: ldns @1.6.16,  Update to version 1.6.17
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 Reporter:  jaap@…                   |      Owner:  macports-tickets@…
     Type:  update                   |     Status:  new
 Priority:  Normal                   |  Milestone:
Component:  ports                    |    Version:  2.3.4
 Keywords:  ldns, drill, ldns-tools  |       Port:  ldns
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 Fixes also the various complaints about not building on El Capitain such
 as #50324.

 Ports depending on this one (ldns-tools, drill) can also be updated. Do I
 need to send separate tickets for these?

 Diff file to update attached

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Ticket URL: <https://trac.macports.org/ticket/51937>
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