[MacPorts] #32141: munin node fail to update with "Plugin XYZ Can't drop privileges: setrgid()"

[MacPorts]

#32141: munin node fail to update with "Plugin XYZ Can't drop privileges:
setrgid()"
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  Reporter:  jacques2020@…  |      Owner:  alpha@…
      Type:  defect         |     Status:  new
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.0.3
Resolution:                 |   Keywords:  Lion
      Port:  munin          |
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Comment (by matthew@…):

 I was able to fix this by setting the munin user in the conf file. It was
 set to 'user root'. I changed it to 'user munin'.

 I reproduced this on Mavericks.

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Ticket URL: <https://trac.macports.org/ticket/32141#comment:6>
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