Style bikeshed - remove extraneous whitespace

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Review URL: https://codereview.chromium.org/1842753002
diff --git a/bench/RotatedRectBench.cpp b/bench/RotatedRectBench.cpp
index 5ae0b1b..23e0443 100644
--- a/bench/RotatedRectBench.cpp
+++ b/bench/RotatedRectBench.cpp
@@ -13,7 +13,7 @@
 
 /** This benchmark tests rendering rotated rectangles. It can optionally apply AA and/or change the
     paint color between each rect in different ways using the ColorType enum. The xfermode used can
-    be specified as well. 
+    be specified as well.
   */
 
 enum ColorType {