Fix crash when stars are reset

src/script/lua_api/l_object.cpp

@@ -2082,10 +2082,9 @@ int ObjectRef::l_set_stars(lua_State *L)
 
 		star_params.scale = getfloatfield_default(L, 2,
 			"scale", star_params.scale);
-	}
-
 		star_params.day_opacity = getfloatfield_default(L, 2,
 			"day_opacity", star_params.day_opacity);
+	}
 
 	getServer(L)->setStars(player, star_params);
 	return 0;