fix test

Author: charlesdong1991

pandas/tests/io/formats/test_format.py

@@ -1841,7 +1841,7 @@ def test_to_string_without_index(self):
         # GH 11729 Test index=False option
         s = Series([1, 2, 3, 4])
         result = s.to_string(index=False)
-        expected = (' 1\n' + ' 2\n' + ' 3\n' + ' 4')
+        expected = ('1\n' + '2\n' + '3\n' + '4')
         assert result == expected
 
     def test_unicode_name_in_footer(self):