Changelog entry incorrect for POLAR_DEBUG.
@@ -37,7 +37,7 @@ New features
Debug Mode
==========
-oso can be run in debug mode by setting an environment variable ``POLAR_DEBUG=1``
+oso can be run in debug mode by setting an environment variable ``POLAR_LOG=1``
This prints debug output when polar queries are evaluated to show what's happening.
Other bugs & improvements
