[Buildbot] #2839: Buildbot does not consistenly do logging

[Buildbot trac]

#2839: Buildbot does not consistenly do logging
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Reporter:  sa2ajj     |      Owner:
    Type:  undecided  |     Status:  new
Priority:  major      |  Milestone:  undecided
 Version:  master     |   Keywords:  logging
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 In many places a `log.{msg,err}` (log is import from twisted.python) is
 used to log various information that might be useful later.

 However there's a significant chunk of code that uses `print` to produce
 all kind of debug/error output.

 I'm not sure this is a ''major'' ticket, I just wonder if there're any
 kind of guidelines about how logging should be performed and if there's a
 need to convert those `print`s to either `log.msg` or `log.err`?

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Ticket URL: <http://trac.buildbot.net/ticket/2839>
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Buildbot: build/test automation