scanner: cleanup, only v.parser now depends on v.scanner

cmd/v/v.v

@@ -112,6 +112,7 @@ fn parse_args(args []string) (&pref.Preferences, string) {
 	mut res := &pref.Preferences{}
 	mut command := ''
 	mut command_pos := 0
+	res.is_fmt = util.is_fmt()
 	// for i, arg in args {
 	for i := 0; i < args.len; i++ {
 		arg := args[i]