GitLab

The rest of the strings in the Preview Page Info dialog don't have
periods at the end, so remove this one too.

Bug: 871839
Change-Id: I3d70e667aaace71df1586bf670c03e1fac55d02e
Reviewed-on: https://chromium-review.googlesource.com/c/1264935Reviewed-by: Tarun Bansal <tbansal@chromium.org>
Commit-Queue: Robert Ogden <robertogden@chromium.org>
Cr-Commit-Position: refs/heads/master@{#597158}