Fix flake8 E265

Author: thoo

pandas/tests/io/formats/test_format.py

@@ -1452,7 +1452,7 @@ def test_to_string_format_na(self):
         assert result == expected
 
     def test_to_string_decimal(self):
-        #Issue #23614
+        # Issue #23614
         df = DataFrame({'A': [6.0, 3.1, 2.2]})
         expected = '     A\n0  6,0\n1  3,1\n2  2,2'
         assert df.to_string(decimal=',') == expected