Support spying node being a UTF-8 terminal

console.write() converts CP437->UTF-8, so use write_raw() instead since
we're already doing the CP437->UTF-8 conversion here.

As reported by Keyop.

exec/mqtt_spy.js

@@ -47,7 +47,7 @@ function output(str)
 			str = utf8_encode(str);
 	}
 	if(js.global.console)
-		console.write(str);
+		write_raw(str);
 	else
 		write(str);
 }