[MacPorts] #26938: Updates pidgin to 2.7.4

[MacPorts]

#26938: Updates pidgin to 2.7.4
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 Reporter:  nefar@…              |       Owner:  macports-tickets@…                   
     Type:  update               |      Status:  new                                  
 Priority:  Normal               |   Milestone:                                       
Component:  ports                |     Version:  1.9.1                                
 Keywords:                       |        Port:  pidgin                               
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 http://developer.pidgin.im/wiki/ChangeLog

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Ticket URL: <https://trac.macports.org/ticket/26938>
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