Index: wp-includes/class-wp-admin-bar.php
===================================================================
--- wp-includes/class-wp-admin-bar.php	(revision 23297)
+++ wp-includes/class-wp-admin-bar.php	(working copy)
@@ -348,13 +348,13 @@
 
 		?>
 		<div id="wpadminbar" class="<?php echo $class; ?>" role="navigation">
-			<a class="screen-reader-shortcut" href="#wp-toolbar" tabindex="1"><?php _e('Skip to toolbar'); ?></a>
+			<a rel="nofollow" class="screen-reader-shortcut" href="#wp-toolbar" tabindex="1"><?php _e('Skip to toolbar'); ?></a>
 			<div class="quicklinks" id="wp-toolbar" role="navigation" aria-label="<?php esc_attr_e('Top navigation toolbar.'); ?>" tabindex="0">
 				<?php foreach ( $root->children as $group ) {
 					$this->_render_group( $group );
 				} ?>
 			</div>
-			<a class="screen-reader-shortcut" href="<?php echo esc_url( wp_logout_url() ); ?>"><?php _e('Log Out'); ?></a>
+			<a rel="nofollow" class="screen-reader-shortcut" href="<?php echo esc_url( wp_logout_url() ); ?>"><?php _e('Log Out'); ?></a>
 		</div>
 
 		<?php