fix spaces vs tabs in setup.py
fix spaces vs tabs in setup.py

baverman/py-leveldb,baverman/py-leveldb,rjpower/py-leveldb,baverman/py-leveldb,rjpower/py-leveldb,baverman/py-leveldb,baverman/py-leveldb,rjpower/py-leveldb,rjpower/py-leveldb,baverman/py-leveldb