[MacPorts] #48347: tbb: use expand operator instead of eval

[MacPorts]

#48347: tbb: use expand operator instead of eval
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  Reporter:  ryandesign@…  |      Owner:  sean@…
      Type:  enhancement   |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.3.3
Resolution:                |   Keywords:  haspatch
      Port:  tbb           |
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Comment (by sean@…):

 Yes, please do! Thanks.

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Ticket URL: <https://trac.macports.org/ticket/48347#comment:1>
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