[MacPorts] #30716: rebar: Port submission

[MacPorts]

#30716: rebar: Port submission
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 Reporter:  mail@…            |       Owner:  macports-tickets@…                   
     Type:  submission        |      Status:  new                                  
 Priority:  Normal            |   Milestone:                                       
Component:  ports             |     Version:  2.0.1                                
 Keywords:                    |        Port:  rebar                                
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 new Portfile for rebar (erlang build system)

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Ticket URL: <https://trac.macports.org/ticket/30716>
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