[MacPorts] #28342: jruby @1.5.5 Upgrade to 1.5.6

[MacPorts]

#28342: jruby @1.5.5 Upgrade to 1.5.6
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 Reporter:  ybendana@…          |       Owner:  macports-tickets@…                   
     Type:  update              |      Status:  new                                  
 Priority:  Normal              |   Milestone:                                       
Component:  ports               |     Version:  1.9.2                                
 Keywords:                      |        Port:  jruby                                
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Ticket URL: <https://trac.macports.org/ticket/28342>
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