[MacPorts] #52446: Buildbot failure emails go to too many recipients

[MacPorts]

#52446: Buildbot failure emails go to too many recipients
---------------------------+--------------------------------
  Reporter:  ryandesign@…  |      Owner:  macports-tickets@…
      Type:  defect        |     Status:  new
  Priority:  High          |  Milestone:
 Component:  contrib       |    Version:
Resolution:                |   Keywords:
      Port:                |
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Comment (by larryv@…):

 This would avoid creating a new object repeatedly:
 {{{#!patch
 @@ -682,7 +682,8 @@

      # same as original, but calls portMessageFormatter with access to
 interested_users
      def buildMessageDict(self, name, build, results):
 +        self.interested_users.clear()
          msgdict = self.portMessageFormatter(self.mode, name, build,
 results,
                                              self.master_status,
 self.interested_users)
          return msgdict

 }}}

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Ticket URL: <https://trac.macports.org/ticket/52446#comment:4>
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