removing extra space

intersection-observer/resources/intersection-observer-test-utils.js

diff --git a/intersection-observer/resources/intersection-observer-test-utils.js b/intersection-observer/resources/intersection-observer-test-utils.js
index 18e86df..42fb99c 100644
--- a/intersection-observer/resources/intersection-observer-test-utils.js
+++ b/intersection-observer/resources/intersection-observer-test-utils.js
@@ -165,7 +165,7 @@
           'entries[' + i + '].isIntersecting');
     }
   } }, 500);
-} 
+}
 
 function checkJsonEntry(actual, expected) {
   checkRect(