Fixed typo in one of the tests

hw9/task1/tests/task1.rs

 
     #[test]
     fn control_with_newline_returns_correct_command() {
-        assert_eq!(parse("Control 123\n456"), Ok(Command::Control("123".to_string())))
+        assert_eq!(parse("CONTROL 123\n456"), Ok(Command::Control("123".to_string())))
     }
 
     #[test]