[Buildbot] #2929: document BuildStep renderables variable

[Buildbot trac]

#2929: document BuildStep renderables variable
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Reporter:  vlovich       |       Owner:
    Type:  task          |      Status:  new
Priority:  major         |   Milestone:  0.9.+
 Version:  0.8.9         |  Resolution:
Keywords:  docs, simple  |
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Comment (by sa2ajj):

 I'm curious why http://docs.buildbot.net/latest/manual/cfg-properties.html
 #using-properties-in-steps and http://docs.buildbot.net/latest/manual/cfg-
 properties.html#custom-renderables are not good enough documentation.

 Is it not easy to find it?  Or something else?

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Ticket URL: <http://trac.buildbot.net/ticket/2929#comment:2>
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