[tools] Whitespace CL

TBR=sergiyb@chromium.org

Bug: chromium:903688
Change-Id: I72b57d45286ae28c44bad0edffeb56e9142767d1
Reviewed-on: https://chromium-review.googlesource.com/c/1346494Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Commit-Queue: Sergiy Byelozyorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57690}

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.............