[tools] Whitespace CL

TBR=sergiyb@chromium.org

No-Try: true
Bug: chromium:920557
Change-Id: I3d313959b9afa6116a0db3697ac1bd4382c0a82b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1617924Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org>
Commit-Queue: Sergiy Belozorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61622}

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....