[tools] Whitespace CL

Testing V8 CQ after https://crrev.com/i/1139317 and https://crrev.com/i/1141184,
which are changing how host_class dimension is computed and set and how xenial
bots are provisioned.

TBR=tandrii@chromium.org, machenbach@chromium.org

No-Tree-Checks: true
Change-Id: Id7fcda589764b7048f19df97b3bea6e2ad7c97be
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1554694
Commit-Queue: Sergiy Belozorov <sergiyb@chromium.org>
Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60663}

tools/whitespace.txt

@@ -7,4 +7,4 @@ A Smi balks into a war and says:
 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...................................
+The bartender starts to shake the bottles....................................