buildbot/buildbot — pull request #491 by tardyp (2012-08-13 14:56:57+00:00)
Title: shell: add TestWarning

a step class to consider a special non 0 return code
as warning, instead of failure

This is useful in case of some tests are not yet fully stable, you can still enable them
in the CI without breaking acceptance, and make statistics on the warning counts

Signed-off-by: Pierre Tardy