[MacPorts] #45921: mod_jk: add apache24 variant

[MacPorts]

#45921: mod_jk: add apache24 variant
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  Reporter:  girgen@…     |      Owner:  macports-tickets@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.3.2
Resolution:               |   Keywords:  haspatch maintainer
      Port:  mod_jk       |
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Comment (by Schamschula):

 We must have missed this one when obsoleting Apache 2.0.

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Ticket URL: <https://trac.macports.org/ticket/45921#comment:7>
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