PEP8 fixes

Author: WillAyd

pandas/tests/groupby/test_groupby.py

@@ -2150,12 +2150,13 @@ def test_groupby_bool_aggs(self, agg_func, skipna, vals):
     def test_pct_change(self, test_series, periods, fill_method, limit):
         vals = [np.nan, np.nan, 1, 2, 4, 10, np.nan, np.nan]
         exp_vals = Series(vals).pct_change(periods=periods,
-                                          fill_method=fill_method,
-                                          limit=limit).tolist()
+                                           fill_method=fill_method,
+                                           limit=limit).tolist()
 
         df = DataFrame({'key': ['a'] * len(vals) + ['b'] * len(vals),
                         'vals': vals * 2})
         grp = df.groupby('key')
+
         def get_result(grp_obj):
             return grp_obj.pct_change(periods=periods,
                                       fill_method=fill_method,