[whitespace] trigger the Waterfall bots

TBR=machenbach@chromium.org

No-Try: True
Change-Id: Ie0a94f97989a6f5a7e0b68c733035e3dac264215
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1743966Reviewed-by: Tamer Tas <tmrts@chromium.org>
Auto-Submit: Tamer Tas <tmrts@chromium.org>
Commit-Queue: Tamer Tas <tmrts@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63123}

tools/whitespace.txt

@@ -8,3 +8,4 @@ The doubles heard this and started to unbox.
 The Smi looked at them when a crazy v8-autoroll account showed up...
 The autoroller bought a round of Himbeerbrause. Suddenly.....
 The bartender starts to shake the bottles..............
+I can't add trailing whitespaces, so I'm adding this line.