[MacPorts] #54589: tcl @8.6.6: Update to 8.6.7

[MacPorts]

#54589: tcl @8.6.6: Update to 8.6.7
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  Reporter:  radarhere  |      Owner:
      Type:  update     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:             |   Keywords:  haspatch
      Port:  tcl        |
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Comment (by mf2k):

 The {{{revision}}} line should be deleted because it starts at 0 when
 increasing the version and that is the default value.

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Ticket URL: <https://trac.macports.org/ticket/54589#comment:1>
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