remove whitespace

Author: Si Wei How

pandas/tseries/offsets.py

@@ -588,7 +588,7 @@ def __init__(self, start='09:00', end='17:00', offset=timedelta(0)):
             end = np.asarray(end)
         else:
             end = np.array([end])
-  
+
         vliboffsets = np.vectorize(liboffsets._validate_business_time)
         start = vliboffsets(start)
         end = vliboffsets(end)