[MacPorts] #52761: xdelta1: mark port obsolete replaced by xdelta

[MacPorts]

#52761: xdelta1: mark port obsolete replaced by xdelta
--------------------------+------------------------------
  Reporter:  dbevans      |      Owner:  Torsten.Maehne@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:  removal
      Port:  xdelta1      |
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Comment (by maehne):

 As ticket #35395 explained, the port xdelta1 was primarily motivated by
 tools, which still relied on the xdelta1 output format such as
 [https://tracker.debian.org/pkg/pristine-tar pristine-tar]. It seems that
 since pristine-tar 1.35, which was only released this year, it is finally
 possible to use xdelta3 instead of this obsolete port. I agree that you
 can mark this port as obsolete. Though, it would be nice to keep it in
 MacPorts as long as glib1 is still available and working through MacPorts.

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Ticket URL: <https://trac.macports.org/ticket/52761#comment:1>
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