[MacPorts] #46896: update LaTeXML to 0.8.1

[MacPorts]

#46896: update LaTeXML to 0.8.1
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 Reporter:  bruce.miller@…  |      Owner:  macports-tickets@…
     Type:  update          |     Status:  new
 Priority:  Normal          |  Milestone:
Component:  ports           |    Version:  2.3.3
 Keywords:  update, perl    |       Port:  latexml
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 I've updated LaTeXML to version 0.8.1, upstream, and want to update
 the MacPorts Portfile.  I've attached the Portfile, and diff, by modifying
 the Portfile that is current on MacPorts.  (I don't have commit access)

 *However*, there is a question
 as to whether the handling of Perl versions is correct; it attempts to
 use whatever Perl is currently installed on the user's system (I think).
 Please take a look.

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Ticket URL: <https://trac.macports.org/ticket/46896>
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