removed trailing whitespace

Author: testvinder

pandas/core/reshape/pivot.py

@@ -429,8 +429,8 @@ def crosstab(index, columns, values=None, rownames=None, colnames=None,
 
     >>> foo = pd.Categorical(['a', 'b'], categories=['a', 'b', 'c'])
     >>> bar = pd.Categorical(['d', 'e'], categories=['d', 'e', 'f'])
-    >>> crosstab(foo, bar, dropna=False)  # 'c' and 'f' are not represented 
-                            # in the data, but they still will be counted in 
+    >>> crosstab(foo, bar, dropna=False)  # 'c' and 'f' are not represented
+                            # in the data, but they still will be counted in
                             # the output
     ... # doctest: +SKIP
     col_0  d  e  f