Avoid trailing spaces in unit test (#80033)

test/units/executor/module_common/test_module_common.py

@@ -43,15 +43,16 @@ class TestStripComments:
         assert amc._strip_comments(all_comments) == u""
 
     def test_all_whitespace(self):
-        # Note: Do not remove the spaces on the blank lines below.  They're
+        all_whitespace = (
-        # test data to show that the lines get removed despite having spaces
+            '\n'
-        # on them
+            '              \n'
-        all_whitespace = u"""
+            '\n'
-              
+            '                \n'
-
+            '\t\t\r\n'
-                
+            '\n'
-\t\t\r\n
+            '            '
-            """  # nopep8
+        )
+
         assert amc._strip_comments(all_whitespace) == u""
 
     def test_somewhat_normal(self):