Symlink Maze

An application at /opt/app/ can't find its configuration file. The app reads its config from /opt/app/config, which is a symlink chain that ultimately should point to the real config file. But somewhere in the chain, a link is broken. Trace the symlink chain, find the broken link, and fix it so that /opt/app/config resolves to a readable file containing "app_name=terminal43". The actual config file is at /etc/app/v2/config.ini.