[MacPorts] #29899: Updates to the OLA Portfile

[MacPorts]

#29899: Updates to the OLA Portfile
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 Reporter:  nomis52@…          |       Owner:  macports-tickets@…                   
     Type:  update             |      Status:  new                                  
 Priority:  Normal             |   Milestone:                                       
Component:  ports              |     Version:  1.9.2                                
 Keywords:                     |        Port:  ola                                  
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 This does the following:

 - adds support for libusb[[BR]]
 - sorts depends_lib[[BR]]
 - fixes the description[[BR]]
 - add GPL to the license[[BR]]

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Ticket URL: <https://trac.macports.org/ticket/29899>
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