if( $fatal )
    ERR: {
        ...
    }

##</code><code>##

    if( $fatal ) {
    OK:
        ... no need to deprecate this ...
    }
    if( $fatal ) {
        my $foo;
    BAD:
        ... "goto BAD" from outside this block deprecated ...
    }

##</code><code>##

    ...
    if( $whatever ) {
        goto ERR;
    }
    ...
    if( $fatal ) {
        # Used to be "ERR:" here
        goto ERR;
    }
    return ...;
ERR:
    ... code moved from if( $fatal ) ...