Fix `trac.test.EnvironmentStub` log handling following [9713]. Makes the test infrastructure work again.
Fix `trac.test.EnvironmentStub` log handling following [9713]. Makes the test infrastructure work again.

git-svn-id: eda3d06fcef731589ace1b284159cead3416df9b@9719 af82e41b-90c4-0310-8c96-b1721e28e2e2

walty8/trac,netjunki/trac-Pygit2,walty8/trac,jun66j5/trac-ja,netjunki/trac-Pygit2,jun66j5/trac-ja,walty8/trac,jun66j5/trac-ja,netjunki/trac-Pygit2,jun66j5/trac-ja,walty8/trac