[Buildbot] #3516: Windows newlines in build logs are interpreted as two consecutive newlines

[Buildbot trac]

#3516: Windows newlines in build logs are interpreted as two consecutive newlines
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Reporter:  ngladitz  |       Owner:
    Type:  defect    |      Status:  new
Priority:  major     |   Milestone:  undecided
 Version:  0.9.0b7   |  Resolution:
Keywords:            |
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Comment (by ngladitz):

 I misinterpreted the newlines in the actual log output ... looking at the
 output with a hex editor shows that the logs don't use "\n" and "\r\n"
 newlines but rather "\r\n" and "\r\r\n" newlines.

 This is likely to "\n" being converted to "\r\n" by the output stream
 implementations in both python and ctest (when performing text rather than
 binary output on windows).

 So the issue is in the original output. While windows (e.g. notepad)
 itself does fold "\r\r\n" to a single newline buildbot folds it to two
 newlines. I think this is ambiguous and up to interpretation so not
 necessarily a bug in buildbot.

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Ticket URL: <http://trac.buildbot.net/ticket/3516#comment:6>
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