[MacPorts] #61743: mame: improve user experience when running

[MacPorts]

#61743: mame: improve user experience when running
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  Reporter:  mascguy      |      Owner:  mascguy
      Type:  enhancement  |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  mame         |
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Comment (by mascguy):

 Updated our Mame how-to page, per the latest port.

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Ticket URL: <https://trac.macports.org/ticket/61743#comment:9>
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