GitLab

The help message was missing a few linebreaks, which made it
display incorrectly.

BUG=None
TEST=Ran VDAtest and checked the help message was properly
displayed.

Change-Id: I3aa2b15a44868f4333710d6a9a36891c8d75452a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2145749Reviewed-by: David Staessens <dstaessens@chromium.org>
Reviewed-by: Jeffrey Kardatzke <jkardatzke@google.com>
Commit-Queue: Alexandre Courbot <acourbot@chromium.org>
Cr-Commit-Position: refs/heads/master@{#813568}