[MacPorts] #62815: Update to Tcllib 1.20

[MacPorts]

#62815: Update to Tcllib 1.20
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  Reporter:  ryandesign   |      Owner:  (none)
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  base         |    Version:  2.6.4
Resolution:               |   Keywords:
      Port:               |
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Comment (by neverpanic):

 Yes, TclOO would be part of that. There are few bugs to iron out before
 this is ready.

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Ticket URL: <https://trac.macports.org/ticket/62815#comment:5>
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