[V8] waterfall_bot: Accept parenthesis before version number See https://crrev.com/c/7414702 [email protected] Change-Id: Ie4327ef7af7a4078bd94414c65971e9f343ac9ee Reviewed-on: https://chromium-review.googlesource.com/c/infra/experimental/+/7414841 Reviewed-by: Leszek Swirski <[email protected]> Commit-Queue: Clemens Backes <[email protected]>