[MacPorts] #34287: update petsc Portfile to include external software

[MacPorts]

#34287: update petsc Portfile to include external software
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 Reporter:  christophe.prudhomme@…                |       Owner:  mmoll@…           
     Type:  enhancement                           |      Status:  new               
 Priority:  Normal                                |   Milestone:                    
Component:  ports                                 |     Version:  2.0.4             
 Keywords:  haspatch                              |        Port:  petsc             
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Changes (by ryandesign@…):

  * keywords:  => haspatch
  * owner:  macports-tickets@… => mmoll@…


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Ticket URL: <https://trac.macports.org/ticket/34287#comment:1>
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