[MacPorts] #42534: qlandkartegt: upgrade to 1.7.6

[MacPorts]

#42534: qlandkartegt: upgrade to 1.7.6
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 Reporter:  michael.klein@…      |      Owner:  macports-tickets@…
     Type:  update               |     Status:  new
 Priority:  Normal               |  Milestone:
Component:  ports                |    Version:  2.2.1
 Keywords:  haspatch maintainer  |       Port:  qlandkartegt
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 latest upstream version, plus a little change in the master_sites URL

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Ticket URL: <https://trac.macports.org/ticket/42534>
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