add issue numbe

Author: charlesdong1991

pandas/tests/io/formats/test_format.py

@@ -2799,5 +2799,6 @@ def test_format_remove_leading_space_series(input_array, expected):
     ({"A": ["a", 1], "B": ["aa", 1]}, "A  B\na aa\n1  1")
 ])
 def test_format_remove_leading_space_dataframe(input_array, expected):
+    # GH: 24980
     df = pd.DataFrame(input_array).to_string(index=False)
     assert df == expected