added missing spaces before braces. added unknown option msg if not given -Wc|l|a when passing options to subprocess

src/cl65/main.c

@@ -1465,6 +1465,7 @@ int main (int argc, char* argv [])
                             OptLdArgs (Arg, GetArg (&I, 3));
                             break;
                         default:
+                            UnknownOption (Arg);
                             break;
                        }
                     } else {