Disabling autocomplete for WP post editor

disable-autocomplete-for-editor.php

<?php
/*
 * Plugin Name: Disabling autocomplete for editor
 * Description: See https://core.trac.wordpress.org/ticket/28037
*/

add_action( 'post_edit_form_tag' , 'disable_autocomplete_for_editor__gfm_ac' );

function disable_autocomplete_for_editor__gfm_ac( ) {
	echo ' autocomplete="off" ';
}