CRAS: test_client - add missing newlines.
CRAS: test_client - add missing newlines.

Help output was missing newlines, add them.

Signed-off-by: Dylan Reid <c791bfe44996c1eed9c7149a0c5f12a86d58eb85@chromium.org>
Change-Id: Ibbd8a8dee144c59a3a31a10655380f8c0d4634ba
Reviewed-on: https://gerrit.chromium.org/gerrit/63741

drinkcat/adhd,drinkcat/adhd,drinkcat/adhd,drinkcat/adhd,drinkcat/adhd,drinkcat/adhd