[MacPorts] #60234: stlink @1.6.0 Sync with upstream - mechanism explanation needed

[MacPorts]

#60234: stlink @1.6.0 Sync with upstream - mechanism explanation needed
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  Reporter:  chenguokai  |      Owner:  chenguokai
      Type:  update      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  stlink      |
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Comment (by chenguokai):

 Yes, I found I had made a mistake.
 I checked the info a few days ago and wrote this ticket without noticing
 the version update.
 Sorry for the mistake.
 The questions are, however, remained and I have posted it to the mail
 list.

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Ticket URL: <https://trac.macports.org/ticket/60234#comment:5>
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