[MacPorts] #59840: valgrind: update to 3.15.0 (was: valgrind needs update)

[MacPorts]

#59840: valgrind: update to 3.15.0
-------------------------+--------------------
  Reporter:  casouri     |      Owner:  raimue
      Type:  update      |     Status:  closed
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.6.2
Resolution:  worksforme  |   Keywords:
      Port:  valgrind    |
-------------------------+--------------------
Changes (by raimue):

 * status:  assigned => closed
 * resolution:   => worksforme


Comment:

 valgrind is at 3.16.1, so I assume we can close this request.

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Ticket URL: <https://trac.macports.org/ticket/59840#comment:2>
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