[MacPorts] #53650: Update pcb to version 4.0.0

[MacPorts]

#53650: Update pcb to version 4.0.0
---------------------------+---------------------------------
  Reporter:  technobauble  |      Owner:  mf2k
      Type:  update        |     Status:  reopened
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:  haspatch maintainer
      Port:  pcb           |
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Comment (by ctreleaven):

 See https://guide.macports.org/#reference.keywords

 Just insert the following in your portfile:

 {{{
 epoch               1
 }}}

 Conventionally, it goes just before the the version number.

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Ticket URL: <https://trac.macports.org/ticket/53650#comment:5>
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