[MacPorts] #28460: Update Cmake to version 2.8.4

[MacPorts]

#28460: Update Cmake to version 2.8.4
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 Reporter:  patrick.isaacson@…          |       Owner:  css@…           
     Type:  update                      |      Status:  new             
 Priority:  Normal                      |   Milestone:                  
Component:  ports                       |     Version:                  
 Keywords:  haspatch                    |        Port:  cmake           
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Comment(by patrick.isaacson@…):

 I will remember that for next time, thank you.

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Ticket URL: <https://trac.macports.org/ticket/28460#comment:2>
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