Fix cpplint whitespace/comments issues

Change-Id: Iae286862c85fb8fd8901eae1204cd6d271d69496
diff --git a/compiler/utils/scoped_hashtable.h b/compiler/utils/scoped_hashtable.h
index e38b90e..ccec7ba 100644
--- a/compiler/utils/scoped_hashtable.h
+++ b/compiler/utils/scoped_hashtable.h
@@ -66,6 +66,6 @@
  private:
   std::list<std::map<K, V> > scopes;
 };
-} // end namespace utils
+}  // namespace utils
 
 #endif  // ART_COMPILER_UTILS_SCOPED_HASHTABLE_H_