[MacPorts] #50969: Provide a generic extract command in base

[MacPorts]

#50969: Provide a generic extract command in base
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  Reporter:  mojca        |      Owner:
      Type:  enhancement  |     Status:  assigned
  Priority:  Normal       |  Milestone:  MacPorts 2.6.0
 Component:  base         |    Version:  2.3.4
Resolution:               |   Keywords:
      Port:               |
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Changes (by neverpanic):

 * owner:  raimue@… =>
 * status:  new => assigned
 * cc: ryandesign, neverpanic, ian.rees@… (added)
 * milestone:   => MacPorts 2.6.0


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Ticket URL: <https://trac.macports.org/ticket/50969#comment:12>
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