LGTM: Name unused variable in loop
    
    For loop variable '_nothing' is not used in the loop body. The name
    'unused' is used to indicate that a variable is unused.
    
    https://pagure.io/freeipa/issue/7344
    
    Signed-off-by: Christian Heimes <cheimes@redhat.com>
    Reviewed-By: Fraser Tweedale <ftweedal@redhat.com>