[MacPorts] #59859: apply maintainer for spdlog

[MacPorts]

#59859: apply maintainer for spdlog
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  Reporter:  XNephila     |      Owner:  (none)
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:  haspatch
      Port:  spdlog       |
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Comment (by XNephila):

 Replying to [comment:1 jmroot]:
 > Thank you for volunteering to maintain this port. We would generally
 recommend that ports maintained by non-committers use the `openmaintainer`
 policy, which means that committers can make minor fixes without seeking
 maintainer approval every time. Would you like to do that?

 Yes, thank you!

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Ticket URL: <https://trac.macports.org/ticket/59859#comment:2>
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