Message when no data are available

git-svn-id: http://svn.code.sf.net/p/itop/code/trunk@5011 a333f486-631f-4898-b8df-5754b55c2be0

test/display_cache_content.php

@@ -46,6 +46,7 @@ echo "<pre>";
 
 if (empty($aEntries))
 {
+	echo "No Data";
 	return;
 }