examples/uptime.rs: fix copyright year

examples/uptime.rs

@@ -1,4 +1,4 @@
-// Copyright 2016 6WIND S.A. <quentin.monnet@6wind.com>
+// Copyright 2017 6WIND S.A. <quentin.monnet@6wind.com>
 //
 // Licensed under the Apache License, Version 2.0 <http://www.apache.org/licenses/LICENSE-2.0> or
 // the MIT license <http://opensource.org/licenses/MIT>, at your option. This file may not be