[MacPorts] #43246: Update herbstluftwm to 0.6.2

[MacPorts]

#43246: Update herbstluftwm to 0.6.2
---------------------------+----------------------
  Reporter:  justrafi@…    |      Owner:  cal@…
      Type:  update        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.2.1
Resolution:                |   Keywords:
      Port:  herbstluftwm  |
---------------------------+----------------------
Changes (by cal@…):

 * owner:  macports-tickets@… => cal@…
 * keywords:  herbstluftwm =>
 * status:  new => assigned
 * cc: cal@…, openmaintainer@… (removed)


Comment:

 `openmaintainer at macports.org` is not a real email address, you don't need
 to Cc it.

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Ticket URL: <https://trac.macports.org/ticket/43246#comment:1>
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