[MacPorts] #23125: graphics/libpng update version, tweak livecheck

[MacPorts]

#23125: graphics/libpng update version, tweak livecheck
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  Reporter:  rmsfisher@…             |       Owner:  ryandesign@…           
      Type:  update                  |      Status:  closed                 
  Priority:  Normal                  |   Milestone:                         
 Component:  ports                   |     Version:                         
Resolution:  fixed                   |    Keywords:                         
      Port:  libpng                  |  
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Changes (by rmstonecipher@…):

  * status:  assigned => closed
  * resolution:  => fixed


Comment:

 Updated Portfile and scores of revision bumps committed in r75159.

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Ticket URL: <https://trac.macports.org/ticket/23125#comment:18>
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