[MacPorts] #64622: npm8 update instructions reference npm7

[MacPorts]

#64622: npm8 update instructions reference npm7
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  Reporter:  idontusenumbers  |      Owner:  ci42
      Type:  defect           |     Status:  assigned
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:
Resolution:                   |   Keywords:
      Port:  npm8             |
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Changes (by ryandesign):

 * owner:  (none) => ci42
 * status:  new => assigned


Comment:

 Correct, this message needs to be fixed in patch-lib-commands-
 update.js.diff and then the port's revision (or version) must be
 increased.

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Ticket URL: <https://trac.macports.org/ticket/64622#comment:1>
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