[MacPorts] #48324: pandoc @1.12.4.2_1: update to latest version

[MacPorts]

#48324: pandoc @1.12.4.2_1: update to latest version
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  Reporter:  joe.oboyle@…  |      Owner:  macports-tickets@…
      Type:  update        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:
      Port:  pandoc        |
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Comment (by rpgoldman):

 By the way, this is causing a problem with ipython and nbconvert:  the
 py27-pandocfilters that we get with MacPorts is new enough to be
 incompatible with the version of pandoc that MacPorts supplies.

 See https://github.com/jupyter/nbconvert/issues/669

 If pandoc can't be upgraded, then pandocfilters should be downgraded to
 1.2.4 for compatibility.

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Ticket URL: <https://trac.macports.org/ticket/48324#comment:25>
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