Updated comment in test_join

GH21220

Author: KalyanGokhale

pandas/tests/reshape/merge/test_join.py

@@ -230,10 +230,9 @@ def test_join_on_fails_with_different_column_counts(self):
 
     def test_join_on_fails_with_wrong_object_type(self):
         # GH12081
-        """ GH21220 - merging of Series and DataFrame is now allowed
-            Edited the test to remove the Series object from 'wrongly_typed'
-        """
         wrongly_typed = [2, 'str', None, np.array([0, 1])]
+        # GH21220 - merging of Series and DataFrame is now allowed
+        # Edited the test to remove the Series object from 'wrongly_typed'
         df = DataFrame({'a': [1, 1]})
 
         for obj in wrongly_typed: