Don't sanitize error message hint

core/templates/error.php

@@ -2,7 +2,7 @@
 	<?php foreach($_["errors"] as $error):?>
 		<li class='error'>
 			<?php p($error['error']) ?><br/>
-			<p class='hint'><?php if(isset($error['hint']))p($error['hint']) ?></p>
+			<p class='hint'><?php if(isset($error['hint']))print_unescaped($error['hint']) ?></p>
 		</li>
 	<?php endforeach ?>
 </ul>