[MacPorts] #20046: pcre++ rename to pcrexx for consistency and safety

[MacPorts]

#20046: pcre++ rename to pcrexx for consistency and safety
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  Reporter:  blb@…             |       Owner:  gwright@…           
      Type:  defect            |      Status:  closed              
  Priority:  Normal            |   Milestone:                      
 Component:  ports             |     Version:  1.7.1               
Resolution:  fixed             |    Keywords:                      
      Port:  pcre++            |  
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Comment(by jmr@…):

 r92018

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Ticket URL: <https://trac.macports.org/ticket/20046#comment:4>
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