Encode < and > in wp_richedit_pre. Props azaozz. fixes #6449

git-svn-id: http://svn.automattic.com/wordpress/trunk@8073 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/formatting.php

@@ -1132,6 +1132,10 @@ function wp_richedit_pre($text) {
 	$output = str_replace('<', '<', $output);
 	$output = str_replace('>', '>', $output);
 
+	// These should be entities too
+	$output = str_replace('<', '&lt;', $output);
+	$output = str_replace('>', '&gt;', $output);
+	
 	return apply_filters('richedit_pre', $output);
 }