typo fix

Co-authored-by: Jeffrey Martin <[email protected]>
Signed-off-by: Leon Derczynski <[email protected]>

garak/policy.py

@@ -194,7 +194,7 @@ def propagate_up(self):
         """propagate permissiveness upwards. if any child is True, and parent is None, set parent to True"""
         # get bottom nodes
         # get mid nodes
-        # skip four parents - they don't propagate up
+        # skip for parents - they don't propagate up
         # iterate in order :)
 
         point_order = []