Generate NameIDFormat in metadata for SPs with a NameIDPolicy set.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@3311 44740490-163a-0410-bde0-09ae8108e29a

modules/saml/www/sp/metadata.php

@@ -118,6 +118,11 @@ if ($certInfo !== NULL && array_key_exists('certData', $certInfo)) {
 	$certData = NULL;
 }
 
+$format = $spconfig->getString('NameIDPolicy', NULL);
+if ($format !== NULL) {
+    $metaArray20['NameIDFormat'] = $format;
+}
+
 $name = $spconfig->getLocalizedString('name', NULL);
 $attributes = $spconfig->getArray('attributes', array());