[MacPorts] #29381: add debug variant for tracing support

[MacPorts]

#29381: add debug variant for tracing support
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 Reporter:  rkitover@…         |       Owner:  macports-tickets@…                   
     Type:  enhancement        |      Status:  new                                  
 Priority:  Normal             |   Milestone:                                       
Component:  ports              |     Version:  1.9.2                                
 Keywords:  haspatch           |        Port:  libssh2                              
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Changes (by cal@…):

  * keywords:  => haspatch


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Ticket URL: <https://trac.macports.org/ticket/29381#comment:2>
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