[MacPorts] #46700: ffmpeg: add openssl variant

[MacPorts]

#46700: ffmpeg: add openssl variant
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  Reporter:  eirnym       |      Owner:  jeremyhu
      Type:  enhancement  |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  ffmpeg       |
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Comment (by eirnym):

 is there any chance to accept it?

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Ticket URL: <https://trac.macports.org/ticket/46700#comment:9>
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