Whitespace change to test infra

TBR=santa

Change-Id: Iff32a0c25b083003a0dc6caa53ed5bb182f4de2d
Reviewed-on: https://chromium-review.googlesource.com/c/1301508Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57031}

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......