Upgrade V8 to version 4.9.385.28

https://chromium.googlesource.com/v8/v8/+/4.9.385.28

FPIIM-449

Change-Id: I4b2e74289d4bf3667f2f3dc8aa2e541f63e26eb4
diff --git a/src/dtoa.cc b/src/dtoa.cc
index fc02aca..76993cf 100644
--- a/src/dtoa.cc
+++ b/src/dtoa.cc
@@ -79,4 +79,5 @@
   buffer[*length] = '\0';
 }
 
-} }  // namespace v8::internal
+}  // namespace internal
+}  // namespace v8