[MacPorts] #47641: update rethinkdb to 2.0.1

[MacPorts]

#47641: update rethinkdb to 2.0.1
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  Reporter:  mtb19@…    |      Owner:  macports-tickets@…
      Type:  update     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:             |   Keywords:
      Port:  rethinkdb  |
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Comment (by khindenburg@…):

 The current version in macports is 1.11.1 - I'm not sure the best way to
 upgrade to 2.x.y

 {{{
 ## Compatibility ##

 Data files from RethinkDB versions 1.13.0 onward will be automatically
 migrated to version 2.0. As with any major release, back up your data
 files
 before performing the upgrade.
 {{{

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Ticket URL: <https://trac.macports.org/ticket/47641#comment:3>
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