Modify headphone volume warning message

    <!-- Message shown in dialog when user is attempting to set the music volume above the

    recommended maximum level for headphones -->

    <string name="safe_media_volume_warning" product="default">

       "Raise volume above safe level?\nListening at high volume for long periods may damage your hearing."

       "Raise volume above recommended level?\nListening at high volume for long periods may damage your hearing."

    </string>

    <!-- Text spoken when the user is performing a gesture that will enable accessibility. [CHAR LIMIT=none] -->