authYubiKey: Remove deprecated uses of split().

We should probably update this library to the latest version, but that
must wait until we can test the changes. This should at least fix the
deprecated-function warnings that PHP produces.

Thanks to Thijs Kinkhorst for providing this patch.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@3033 44740490-163a-0410-bde0-09ae8108e29a

modules/authYubiKey/libextinc/Yubico.php

@@ -137,11 +137,11 @@ class Auth_Yubico
 		
 		/* Verify signature. */
 		if($this->_key <> "") {
-			$rows = split("\r\n", $responseMsg);
+			$rows = explode("\r\n", $responseMsg);
 			while (list($key, $val) = each($rows)) {
 				// = is also used in BASE64 encoding so we only replace the first = by # which is not used in BASE64
 				$val = preg_replace('/=/', '#', $val, 1);
-				$row = split("#", $val);
+				$row = explode("#", $val);
 				$response[$row[0]] = (isset($row[1])) ? $row[1] : "";
 			}