[MacPorts] #56442: asciidoctor @1.5.6.1: update to 1.5.7

[MacPorts]

#56442: asciidoctor @1.5.6.1: update to 1.5.7
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 Reporter:  l2dy    |      Owner:  guido@…
     Type:  update  |     Status:  assigned
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:
 Keywords:          |       Port:  asciidoctor
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Ticket URL: <https://trac.macports.org/ticket/56442>
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