[tools] Whitespace CL

TBR=sergiyb@chromium.org

Bug: chromium:773297
Change-Id: I51a9cff42adb477bc089a869741e34513426e5b6
Reviewed-on: https://chromium-review.googlesource.com/989715
Commit-Queue: Sergiy Byelozyorov <sergiyb@chromium.org>
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52312}

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