wp-login.php page redirect

functions.php

<?php
/**
 * Redirect from wp-login.php
 * @link http://stackoverflow.com/a/1976804/1743124
 */
function mayeenulislam_wp_login_redirect(){
	if( isset($_GET['action']) && $_GET['action'] == 'register' ) {
		wp_redirect( home_url('/register') ); //i.e. http://example.com/register
		exit();
	} else if( isset($_GET['action']) && $_GET['action'] == 'lostpassword' ) {
		wp_redirect( home_url('/reset-password') ); //i.e. http://example.com/reset-password
		exit();
	} else {
		wp_redirect( home_url('/login') ); //i.e. http://example.com/login
		exit();
	}
}
add_action( 'login_head', 'mayeenulislam_wp_login_redirect' );