fix whitespace

tpl/404.html

@@ -10,7 +10,7 @@
 <div class="error-container">
     <h1>404 Not found <small>Oh crap!</small></h1>
     <p>{$error_message}</p>
-    <p>Would you mind <a href="?">clicking here</a> ?</p>
+    <p>Would you mind <a href="?">clicking here</a>?</p>
 </div>
 {include="page.footer"}
 </body>