test suite has INFO on stdout/stderr

[John A Meinel]

One of the recent updates is causing test stipple to show up:

INFO:bzr:Committing to: /tmp/testbzr-cKB0Jn.tmp/bzrlib.plugins.loggerhead.loggerhead.tests.test_history.TestHistoryChangeFromRevision.test_committer_vs_authors/work/test/
INFO:bzr:Committed revision 1.
INFO:bzr:Committing to: /tmp/testbzr-cKB0Jn.tmp/bzrlib.plugins.loggerhead.loggerhead.tests.test_history.TestHistoryChangeFromRevision.test_simple/work/test/
INFO:bzr:Committed revision 1.
INFO:bzr:Committing to: /tmp/testbzr-cKB0Jn.tmp/bzrlib.plugins.loggerhead.loggerhead.tests.test_history.TestHistoryChangeFromRevision.test_tags/work/test/
INFO:bzr:Committed revision 1.
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Ran 72 tests in 3.075s

I'm not sure what the fix is, but it is a bit annoying to not have a clean test suite output.

[Robert Collins (lifeless)]

fixtures has a FakeLogger than will handle this in a jiffy