Fix JSONArrayTest.

Whitespace issues.

Change-Id: I12bf6134c9bdd060ab5362f97d2315471ecd7251
diff --git a/json/src/test/java/org/json/JSONArrayTest.java b/json/src/test/java/org/json/JSONArrayTest.java
index f05399a..4c86b8a 100644
--- a/json/src/test/java/org/json/JSONArrayTest.java
+++ b/json/src/test/java/org/json/JSONArrayTest.java
@@ -562,6 +562,6 @@
 
         // This doesn't because it's not.
         JSONArray a2 = new JSONArray(MyEnum.values());
-        assertEquals("[null, null, null]", a2.toString());
+        assertEquals("[null,null,null]", a2.toString());
     }
 }