wpcf7_add_shortcode is deprecated

As soon as I installed your plugin I got this notice:

Notice: wpcf7_add_shortcode is deprecated since Contact Form 7 version 4.6! Use wpcf7_add_form_tag instead. in /var/www/html/site/wp-content/plugins/contact-form-7/includes/functions.php on line 365

Fixed it temporary by updating the code:

add_action( ‘wpcf7_init’, ‘wpcf7_add_shortcode_multifile’ );

function wpcf7_add_shortcode_multifile() {
wpcf7_add_form_tag( array( ‘multifile’, ‘multifile*’ ),
‘wpcf7_multifile_shortcode_handler’, true );
}