Redirect Plugins.php to New Plugin Page

After a little bit of trial and error, I finally got my code to work. This will redirect http://example.com/wp-admin/plugins to http://example.com/wp-admin/admin.php?page=pretty-plugins.php if the current user doesn’t have access to update core.

add_action( 'admin_menu', 'block_direct_plugin_page_access' );  
function block_direct_plugin_page_access() {
    global $pagenow;
    if ( ! current_user_can('update_core') && 'plugins.php' === $pagenow ) {
        if ( function_exists('admin_url') ) {
            wp_redirect( admin_url('admin.php?page=pretty-plugins.php') );
        } else {
            wp_redirect( get_option('siteurl') . '/wp-admin/' . 'admin.php?page=pretty-plugins.php' );
        }
    }
}