Utilities: Fix typo in duration parser.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@862 44740490-163a-0410-bde0-09ae8108e29a

lib/SimpleSAML/Utilities.php

@@ -469,7 +469,7 @@ class SimpleSAML_Utilities {
 		$timestamp += $durDays * 24 * 60 * 60;
 		$timestamp += $durHours * 60 * 60;
 		$timestamp += $durMinutes * 60;
-		$timestamp += $durSecods;
+		$timestamp += $durSeconds;
 
 		return $timestamp;
 	}