[MacPorts] #50670: ipmitool: update to 1.8.15

[MacPorts]

#50670: ipmitool: update to 1.8.15
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 Reporter:  eborisch@…  |      Owner:  dports@…
     Type:  update      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:  2.3.4
 Keywords:  haspatch    |       Port:  ipmitool
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 Patch for the Portfile attached.

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Ticket URL: <https://trac.macports.org/ticket/50670>
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