[MacPorts] #51098: Update marx

[MacPorts]

#51098: Update marx
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 Reporter:  moritz.guenther@…  |      Owner:  macports-tickets@…
     Type:  update             |     Status:  new
 Priority:  Normal             |  Milestone:
Component:  ports              |    Version:  2.3.4
 Keywords:                     |       Port:
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 Update port: marx (in science) from version 5.2 to 5.3
 (There was an mixture of tabs and spaces in the Portfile before. My editor
 converted all of them to spaces when I edited the file.)

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Ticket URL: <https://trac.macports.org/ticket/51098>
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