Do not include trailing '\0' in debugger output string

src/debug.cc

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 2195 matching lines @@
 
 Message Message::NewHostDispatch(v8::Debug::ClientData* dispatch) {
   return Message(Vector<uint16_t>::empty(), dispatch, true);
 }
 
 
 Message Message::NewOutput(v8::Handle<v8::String> output,
                            v8::Debug::ClientData* data) {
   Vector<uint16_t> text;
   if (!output.IsEmpty()) {
-    text = Vector<uint16_t>::New(output->Length() + 1);
-    output->Write(text.start());
+    // Do not include trailing '\0'.
+    text = Vector<uint16_t>::New(output->Length());
+    output->Write(text.start(), 0, output->Length());
   }
   return Message(text, data, false);
 }
 
 
 Message Message::NewEmptyMessage() {
   return Message();
 }
 
 
@@ skipping 74 matching lines @@
 
 
 void LockingMessageQueue::Clear() {
   ScopedLock sl(lock_);
   queue_.Clear();
 }
 
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 } }  // namespace v8::internal