Comma cleanup
- [x] pandas/tests/indexes/datetimes/test_datetime.py
- [x] pandas/tests/indexes/datetimes/test_timezones.py
- [x] pandas/tests/indexes/multi/test_constructors.py
- [x] pandas/tests/indexes/multi/test_isin.py
- [x] pandas/tests/indexes/test_base.py
- [x] pandas/tests/indexes/timedeltas/test_scalar_compat.py
- [x] pandas/tests/indexes/timedeltas/test_searchsorted.py
- [x] pandas/tests/indexing/common.py
- [x] pandas/tests/indexing/test_callable.py
- [x] pandas/tests/indexing/test_check_indexer.py
- [x] pandas/tests/indexing/test_coercion.py
- [x] pandas/tests/indexing/test_floats.py
