[MacPorts] #21925: mlt 0.4.2 update to new upstream version 0.4.6

[MacPorts]

#21925: mlt 0.4.2 update to new upstream version 0.4.6
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 Reporter:  dan@…            |       Owner:  macports-tickets@…                   
     Type:  update           |      Status:  new                                  
 Priority:  Normal           |   Milestone:                                       
Component:  ports            |     Version:  1.8.1                                
 Keywords:                   |        Port:                                       
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 Update to upstream v0.4.6. Add darwin-8 compatibility. Address a lint
 warning. I am both the upstream and Portfile maintainer.

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Ticket URL: <http://trac.macports.org/ticket/21925>
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