[MacPorts] #48827: nodejs: update to 4.0.0

[MacPorts]

#48827: nodejs: update to 4.0.0
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  Reporter:  felipou@…  |      Owner:  ciserlohn@…
      Type:  update     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:             |   Keywords:
      Port:  nodejs     |
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Comment (by sean@…):

 Hmm, I actually need this for work. I can post some patches here tomorrow
 for review if that helps.

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Ticket URL: <https://trac.macports.org/ticket/48827#comment:6>
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