Make smartname module handle userids without @

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@1341 44740490-163a-0410-bde0-09ae8108e29a

modules/smartnameattribute/lib/Auth/Process/SmartName.php

@@ -47,6 +47,7 @@ class sspmod_smartnameattribute_Auth_Process_SmartName extends SimpleSAML_Auth_P
 	}
 	
 	private function getLocalUser($userid) {
+		if (strpos($userid, '@') === FALSE) return NULL;
 		$decomposed = explode('@', $userid);
 		if(count($decomposed) === 2) {
 			return $decomposed[0];