[MacPorts] #63639: tumbler: update to 0.2.9

[MacPorts]

#63639: tumbler: update to 0.2.9
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  Reporter:  mascguy  |      Owner:  mascguy
      Type:  update   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:  tumbler  |
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Comment (by mascguy):

 Note that most of the work is done, with one key exception: The configure
 script isn't finding `libopenraw`.

 This should be easy enough to fix; just need to do a bit more digging.

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Ticket URL: <https://trac.macports.org/ticket/63639#comment:1>
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