[Buildbot] #2958: Add "platform" to renderables in MsBuild4

[Buildbot trac]

#2958: Add "platform" to renderables in MsBuild4
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Reporter:  cscott       |       Owner:
    Type:  enhancement  |      Status:  new
Priority:  minor        |   Milestone:  undecided
 Version:  0.8.9        |  Resolution:
Keywords:  msbuild      |
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Comment (by cscott):

 https://github.com/buildbot/buildbot/pull/1283

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Ticket URL: <http://trac.buildbot.net/ticket/2958#comment:2>
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