Style bikeshed - remove extraneous whitespace

GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1842753002

Review URL: https://codereview.chromium.org/1842753002
diff --git a/tests/BlurTest.cpp b/tests/BlurTest.cpp
index dc3d6c7..8c726e9 100644
--- a/tests/BlurTest.cpp
+++ b/tests/BlurTest.cpp
@@ -559,7 +559,7 @@
 
 #if SK_SUPPORT_GPU
 
-// This exercises the problem discovered in crbug.com/570232. The return value from 
+// This exercises the problem discovered in crbug.com/570232. The return value from
 // SkBlurMask::BoxBlur wasn't being checked in SkBlurMaskFilter.cpp::GrRRectBlurEffect::Create
 DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SmallBoxBlurBug, reporter, ctx) {