Fix compilation.

ISHelp/isetup.xml

@@ -2858,7 +2858,7 @@ Shown by default, but can be disabled in some cases via <link topic="setup_disab
 
 </ul>
 
-<p>See the <i>AllPagesExample.iss</i> example script for an example which shows all these pages</p>.
+<p>See the <i>AllPagesExample.iss</i> example script for an example which shows all these pages.</p>
 
 </body>
 </topic>