Remove whitespace on blank line from github.com merge

Author: Brian Tu

pandas/core/indexes/base.py

@@ -4036,7 +4036,7 @@ def _list_to_ndarray(a):
         return np.array(a)
     return a
 
-  
+
 def _ensure_index_from_sequences(sequences, names=None):
     """Construct an index from sequences of data.