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/gm/pathreverse.cpp b/gm/pathreverse.cpp
index 3350765..f0ce051 100644
--- a/gm/pathreverse.cpp
+++ b/gm/pathreverse.cpp
@@ -15,7 +15,7 @@
  * paint.setTextSize(SkIntToScalar(100));
  * paint.setTypeface(SkTypeface::CreateFromName("Hiragino Maru Gothic Pro"));
  * paint.getTextPath("e", 1, 50, 50, &path);
- * 
+ *
  * The path data is duplicated here to allow the test to
  * run on all platforms and to remove the bug dependency
  * should future Macs edit or delete the font.