d68200b wrap_code: Do not insert any code when no wrappers specified

Authored and Committed by Libor Polčák 3 years ago
    wrap_code: Do not insert any code when no wrappers specified
    
    Make sure that we do not modify the page script environment if there is
    not a reason to do so.
    
    See also #41.
    
        
file modified
+3 -0