Comment 8 for bug 1277495

The following trivial change allows tox -epy33 to succeed:

diff --git a/tox.ini b/tox.ini
index fcd7d91..3bab879 100644
--- a/tox.ini
+++ b/tox.ini
@@ -10,7 +10,6 @@ install_command = pip install -U {opts} {packages}
 setenv = VIRTUAL_ENV={envdir}
          LANG=en_US.UTF-8
          LANGUAGE=en_US:en
- LC_ALL=C

 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt