[MacPorts] #50355: libpng: update to 1.6.21

[MacPorts]

#50355: libpng: update to 1.6.21
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  Reporter:  cal@…   |      Owner:  ryandesign@…
      Type:  update  |     Status:  closed
  Priority:  Low     |  Milestone:
 Component:  ports   |    Version:  2.3.4
Resolution:  fixed   |   Keywords:
      Port:  libpng  |
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Changes (by ryandesign@…):

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


Comment:

 r144816

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Ticket URL: <https://trac.macports.org/ticket/50355#comment:1>
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