Fixed lost password notification for e-mails instead of loginname

I noticed that the lost password e-mail wasn’t being sent because the password reset form I was using (also) accepted the users e-mail address (bbpress). A small addition to the the code fixed this; file bnfw.php line 627

/**
* Send notification for lost password.
*
* @since 1.0
*/
function on_lost_password() {
$user_login = sanitize_text_field( $_POST[ ‘user_login’ ] );
$user = get_user_by( ‘login’, $user_login ) ?: get_user_by( ’email’, $user_login );
if ( $user ) {
$this->send_notification( ‘admin-password’, $user->ID );
}
}