[MacPorts] #54388: port -q should suppress warnings

[MacPorts]

#54388: port -q should suppress warnings
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  Reporter:  mf2k    |      Owner:
      Type:  defect  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  base    |    Version:  2.4.99
Resolution:          |   Keywords:
      Port:          |
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Comment (by mf2k):

 IMHO warnings should be suppressed too because -q would normally be used
 for scripting.

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Ticket URL: <https://trac.macports.org/ticket/54388#comment:2>
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