Fix linting; exceeded number of characters on one line

Author: sahildua2305

pandas/tests/frame/test_timeseries.py

@@ -326,7 +326,8 @@ def test_asfreq_datetimeindex(self):
     def test_asfreq_datetimeindex_empty_series(self):
         # GH 14340
         empty = Series(index=pd.DatetimeIndex([])).asfreq('H')
-        normal = Series(index=pd.DatetimeIndex(["2016-09-29 11:00"]), data=[3]).asfreq('H')
+        normal = Series(index=pd.DatetimeIndex(["2016-09-29 11:00"]),
+                        data=[3]).asfreq('H')
         self.assertEqual(empty.index.freq, normal.index.freq)
 
     def test_first_last_valid(self):