[Buildbot] #3339: buildbot.test.integration.test_trigger.TriggeringMaster.test_trigger is flaky

[Buildbot trac]

#3339: buildbot.test.integration.test_trigger.TriggeringMaster.test_trigger is
flaky
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Reporter:  sa2ajj  |      Owner:
    Type:  defect  |     Status:  new
Priority:  major   |  Milestone:  0.9.+
 Version:  master  |   Keywords:
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 And it causes **two** erros

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Ticket URL: <http://trac.buildbot.net/ticket/3339>
Buildbot <http://buildbot.net/>
Buildbot: build/test automation