[MacPorts] #27337: glew: update to 1.5.7

[MacPorts]

#27337: glew: update to 1.5.7
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 Reporter:  ryandesign@…             |       Owner:  jmr@…           
     Type:  update                   |      Status:  new             
 Priority:  Normal                   |   Milestone:                  
Component:  ports                    |     Version:  1.9.2           
 Keywords:                           |        Port:  glew            
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 I see that glew 1.5.7 is available upstream so the port should probably be
 updated. The livecheck may need to be changed as well.

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Ticket URL: <https://trac.macports.org/ticket/27337>
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