[tools] Whitespace CL

TBR=sergiyb@chromium.org

No-Try: true
Bug: chromium:902428
Change-Id: I8cc2927a9a55f534753a499e2687e0d35cb21cf0
Reviewed-on: https://chromium-review.googlesource.com/c/1324270Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Commit-Queue: Sergiy Byelozyorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57331}

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.........