[MacPorts] #26342: Update devel/msgpack to version 0.5.4

[MacPorts]

#26342: Update devel/msgpack to version 0.5.4
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 Reporter:  stromnov@…             |       Owner:  naoya.n@…        
     Type:  update                 |      Status:  new              
 Priority:  Normal                 |   Milestone:                   
Component:  ports                  |     Version:  1.9.1            
 Keywords:  haspatch               |        Port:  msgpack          
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Changes (by jmr@…):

  * owner:  macports-tickets@… => naoya.n@…


Comment:

 Remember to assign to the maintainer, or they'll likely never see the
 ticket.

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Ticket URL: <http://trac.macports.org/ticket/26342#comment:1>
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