Fix empty table cells in IE

git-svn-id: http://svn.automattic.com/wordpress/trunk@10839 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/template.php

@@ -840,7 +840,7 @@ function get_column_headers($page) {
 				'name' => __('Name'),
 				'url' => __('URL'),
 				'categories' => __('Categories'),
-				'rel' => __('rel'),
+				'rel' => __('Relationship'),
 				'visible' => __('Visible')
 			);
 

wp-admin/link-manager.php

@@ -228,7 +228,7 @@ if ( $links ) {
 					?></td><?php
 					break;
 				case 'rel':
-					?><td <?php echo $attributes ?>><?php echo $link->link_rel; ?></td><?php
+					?><td <?php echo $attributes ?>><?php echo empty($link->link_rel) ? '<br />' : $link->link_rel; ?></td><?php
 					break;
 				case 'visible':
 					?><td <?php echo $attributes ?>><?php echo $visible; ?></td><?php