SAMLBuilder: Fix error with AttributeAuthorityDescriptor.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2517 44740490-163a-0410-bde0-09ae8108e29a

lib/SimpleSAML/Metadata/SAMLBuilder.php

@@ -464,7 +464,7 @@ class SimpleSAML_Metadata_SAMLBuilder {
 
 		$metadata = SimpleSAML_Configuration::loadFromArray($metadata, $metadata['entityid']);
 
-		$e = new SAMl2_AttributeAuthorityDescriptor();
+		$e = new SAML2_XML_md_AttributeAuthorityDescriptor();
 		$e->protocolSupportEnumeration = $metadata->getArray('protocols', array());
 
 		$this->addExtensions($metadata, $e);