[MacPorts] #18308: Portfile update for tuxmath 1.7.1

[MacPorts]

#18308: Portfile update for tuxmath 1.7.1
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 Reporter:  davidstuartbruce@…          |       Owner:  macports-tickets@…                   
     Type:  defect                      |      Status:  new                                  
 Priority:  Normal                      |   Milestone:  Port Updates                         
Component:  ports                       |     Version:  1.7.0                                
 Keywords:                              |        Port:  tuxmath                              
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 version update

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Ticket URL: <http://trac.macports.org/ticket/18308>
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