[MacPorts] #45423: glances: unecessarily forces python 3.4 when 2.7 should work

[MacPorts]

#45423: glances: unecessarily forces python 3.4 when 2.7 should work
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  Reporter:  vergus@…     |      Owner:  g5pw@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.3.1
Resolution:               |   Keywords:
      Port:  glances      |
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Comment (by g5pw@…):

 Yes, I don't use python2, so it's easier for me to maintain in for
 python3. As always, patches welcome.

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Ticket URL: <https://trac.macports.org/ticket/45423#comment:3>
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