Fix POST-redirect with associative array.

Thanks to Goro Sawada for reporting this bug!

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2709 44740490-163a-0410-bde0-09ae8108e29a

templates/post.php

@@ -48,7 +48,7 @@ function printItem($name, $value) {
 
 	/* This is an array... */
 	foreach ($value as $index => $item) {
-		printItem($name . '[' . var_export($index, TRUE) . ']', $item);
+		printItem($name . '[' . $index . ']', $item);
 	}
 }