[Buildbot] #3554: should old-style step users rewrite their calls to addLog* addStd* when upgrading to buildbot9

[Buildbot trac]

#3554: should old-style step users rewrite their calls to addLog* addStd* when
upgrading to buildbot9
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Reporter:  yetanotherion    |       Owner:
    Type:  support-request  |      Status:  new
Priority:  major            |   Milestone:  undecided
 Version:  master           |  Resolution:
Keywords:                   |
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Comment (by dustin):

 I don't think it's *necessary* to upgrade, but a warning to the effect
 that it may help would be a good thing.

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Ticket URL: <http://trac.buildbot.net/ticket/3554#comment:1>
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