[Buildbot] #3433: p4client argument description is incorrect

[Buildbot trac]

#3433: p4client argument description is incorrect
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Reporter:  rutsky     |       Owner:  rutsky
    Type:  undecided  |      Status:  new
Priority:  major      |   Milestone:  0.9.0
 Version:  master     |  Resolution:
Keywords:             |
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Comment (by rutsky):

 Fix in bug2340 branch:
 https://github.com/buildbot/buildbot/commit/4cf6610bfa655fbfa993a0bce49f53c3da98c2d1

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Ticket URL: <http://trac.buildbot.net/ticket/3433#comment:1>
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