spelling: unknown

Signed-off-by: Josh Soref <[email protected]>

Author: jsoref

utils/build_swift/tests/build_swift/test_driver_arguments.py

@@ -278,7 +278,7 @@ def test(self):
                 [option.option_string])
             # The argument should never show up in the namespace
             self.assertFalse(hasattr(namespace, option.dest))
-            # It should instead be forwarded to unkown_args
+            # It should instead be forwarded to unknown_args
             self.assertEqual(unknown_args, [option.option_string])
 
         return test