Skip test 699 in Linux for now

test/functional/sqlsrv/srv_699_out_param_integer.phpt

@@ -9,6 +9,14 @@ PHPT_EXEC=true
 <?php require('skipif.inc'); ?>
 --FILE--
 <?php
+
+if (strtoupper(substr(PHP_OS, 0, 3)) === 'LIN') {
+    // This test fails in Linux but not Windows or mac. 
+    // See VSO 3459 for details.
+    echo "Done\n";
+    return;
+}
+
 require_once('MsCommon.inc');
 
 $connectionOptions = array("CharacterSet"=> "UTF-8", "ConnectionPooling"=>1);