slight change in test imports

Author: jreback

pandas/tests/core/sparse/test_frame.py

@@ -16,10 +16,10 @@
     is_float)
 from pandas.tseries.index import DatetimeIndex
 from pandas.tseries.offsets import BDay
-import pandas.util.testing as tm
+from pandas.util import testing as tm
 from pandas.compat import lrange
 from pandas import compat
-import pandas.core.sparse.frame as spf
+from pandas.core.sparse import frame as spf
 
 from pandas.core.sparse.libsparse import BlockIndex, IntIndex
 from pandas.core.sparse.api import SparseSeries, SparseDataFrame, SparseArray