How to customize Woocommerce is_sold_individually() notice [on hold]

line 925 of includes/class-wc-cart.php is:

// Downloadable/virtual qty check
            if ( $product_data->is_sold_individually() ) {
                $in_cart_quantity = $cart_item_key ? $this->cart_contents[ $cart_item_key ]['quantity'] : 0;
                // If it's greater than 0, it's already in the cart
                if ( $in_cart_quantity > 0 ) {
                    wc_add_notice( sprintf(
                        '<a href="%s" class="button wc-forward">%s</a> %s',
                        $this->get_cart_url(),
                        __( 'View Cart', 'woocommerce' ),
                        sprintf( __( 'You cannot add another &quot;%s&quot; to your cart.', 'woocommerce' ), $product_data->get_title() )
                    ), 'error' );
                    return false;
                }
            }

Obviously I don't want to edit that file, but I need to customize the message. Been googling for hours and can't find an easy solve. I have been looking for a filter or function to modify.

What I want is a method to modify this from functions.php or a pluggable function.

Any help us very much appreciated.