fix test cases issue

Author: Anurag-Varma

pandas/tests/reshape/concat/test_concat.py

@@ -325,7 +325,7 @@ def test_concat_mixed_objs_index(self):
 
     def test_concat_mixed_objs_index_names(self):
         # Test row-wise concat for mixed series/frames with distinct names
-        # GH2385, GH15047 ()
+        # GH2385, GH15047
         # GH #60723 & GH #56257 (Updated the test case,
         # as the above GH PR ones were incorrect)