[MacPorts] #44013: logwatch: update to 7.4.0 and fix livecheck

[MacPorts]

#44013: logwatch: update to 7.4.0 and fix livecheck
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  Reporter:  ryandesign@…  |      Owner:  lassi.tuura@…
      Type:  update        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:
      Port:  logwatch      |
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Comment (by khindenburg@…):

 looks like this has moved to
 http://sourceforge.net/projects/logwatch/files/ and the master_site ftp is
 no longer valid

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Ticket URL: <https://trac.macports.org/ticket/44013#comment:2>
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