In `WP_Terms_List_Table::single_row()`, call `sanitize_term()` on the passed term (`$tag`).

Props oso96_2000, c3mdigital, scribu. 
It takes a village.
Fixes #16864.

Built from https://develop.svn.wordpress.org/trunk@28360


git-svn-id: http://core.svn.wordpress.org/trunk@28188 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/class-wp-terms-list-table.php

@@ -242,6 +242,9 @@ class WP_Terms_List_Table extends WP_List_Table {
 	}
 
 	function single_row( $tag, $level = 0 ) {
+		global $taxonomy;
+ 		$tag = sanitize_term( $tag, $taxonomy );
+
 		static $row_class = '';
 		$row_class = ( $row_class == '' ? ' class="alternate"' : '' );