Many messages already do not end in a ".", which makes sense for
embedders that format location and message in one line, like Chrome.

Before:
  V8 error: Empty MaybeLocal. (v8::ToLocalChecked).

After:
  V8 error: Empty MaybeLocal (v8::ToLocalChecked).

R=mlippautz@chromium.org

Change-Id: Ibfb226c50ae8dce4057cdf0012e58fa1f27faa2a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3811586Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82257}