[MacPorts] #51011: chromedriver: update to 2.21

[MacPorts]

#51011: chromedriver: update to 2.21
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  Reporter:  rff.rff@…     |      Owner:  ryandesign@…
      Type:  update        |     Status:  closed
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:  fixed         |   Keywords:  haspatch
      Port:  chromedriver  |
---------------------------+--------------------------
Changes (by ryandesign@…):

 * status:  assigned => closed
 * resolution:   => fixed


Comment:

 Committed in r147225.

 The port claimed `supported_archs i386` but the port actually installs an
 x86_64 binary, so I updated the `supported_archs` line

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Ticket URL: <https://trac.macports.org/ticket/51011#comment:4>
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