[MacPorts] #32316: vorbisgain @0.34 Add recursive variant

[MacPorts]

#32316: vorbisgain @0.34 Add recursive variant
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 Reporter:  macports.org@…              |       Owner:  macports-tickets@…                   
     Type:  enhancement                 |      Status:  new                                  
 Priority:  Normal                      |   Milestone:                                       
Component:  ports                       |     Version:  2.0.3                                
 Keywords:                              |        Port:  vorbisgain                           
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 I prefer to use vorbisgain's --recursive option over invoking vorbisgain
 with sets of files making up an album.

 I've attached the (very simple) variant to enable the option as a patch.

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Ticket URL: <https://trac.macports.org/ticket/32316>
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