[MacPorts] #23762: InsightToolkit should use python26 variant

[MacPorts]

#23762: InsightToolkit should use python26 variant
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 Reporter:  jeremyhu@…             |       Owner:  dwebber@…           
     Type:  defect                 |      Status:  new                 
 Priority:  Normal                 |   Milestone:                      
Component:  ports                  |     Version:  1.8.2               
 Keywords:                         |        Port:  InsightToolkit      
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 Use python25 and python26 as variant names like other ports.

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Ticket URL: <http://trac.macports.org/ticket/23762>
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