edx/edx-platform — pull request #5561 by ichuang (2014-10-12 17:43:07+00:00)
Title: fix tracking log entry key child-id -> child_id

tracking log entry keys cannot have a dash in them; this breaks imports into the analytics databases being used by Harvard and MIT, for example.

Fix child-id -> child_id in `common/lib/xmodule/xmodule/split_test_module.py`