[MacPorts] #20722: New port: opal-0.4.0

[MacPorts]

#20722: New port: opal-0.4.0
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 Reporter:  lrem@…       |       Owner:  snc@…           
     Type:  submission   |      Status:  assigned        
 Priority:  Normal       |   Milestone:                  
Component:  ports        |     Version:  1.7.1           
 Keywords:               |        Port:  opal            
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Comment(by snc@…):

 Portfiles start out with revision 0, and we don't need to place defaults
 into the portfiles.

 Worksrcdir defaults to distname, so we don't need to define it as such.

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Ticket URL: <http://trac.macports.org/ticket/20722#comment:5>
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