Add Logout Directly to Admin Menu

// Add Logout directly to admin menu     

function ni_add_toolbar_items($admin_bar){
	$admin_bar->add_menu( array(
		'id'    => 'ni-logout',
		'title' => 'Log Out',
		'href'  => wp_logout_url()		
	));
}

add_action('admin_bar_menu', 'ni_add_toolbar_items', 100);