Changes the message shown to vendors when their account is pending.
<?php
/*
 * Plugin Name: Easy Digital Downloads - Change Vendor Pending Message
 * Description: Changes the message shown to vendors when their account is pending.
 * Author: Kyle Maurer
 * Author URI: https://easydigitaldownloads.com/
 * Version: 1.0
 */

function kjm_change_vendor_pending_message() {
	return 'My new message!';
}
add_action( 'fes_application_pending_message', 'kjm_change_vendor_pending_message' );
To implement this snippet on your site, create a brand new, empty WordPress plugin and paste the above code inside.