Added copyright 2018 statement 1. Why is this change necessary ?  Added copyright 2018 statement on options_test.go and added space between // and text on the comments.
Added copyright 2018 statement
1. Why is this change necessary ?
 Added copyright 2018 statement on options_test.go and added space
between // and text on the comments.

Signed-off-by: gkGaneshR <3ffdcdce3be7a2573e21b866f581857db5c37d6e@gmail.com>

kubernetes/node-problem-detector,kubernetes/node-problem-detector