message: Use bytebuf::assign() instead of resize, memcpy
diff: @@ -35,8 +35,7 @@ void ObjC::Get_defaultLibraryData(bytebuf &buffer)
  dispatch_data_t data = dispatch_data_create(
  myData.bytes, myData.length, dispatch_get_main_queue(), DISPATCH_DATA_DESTRUCTOR_DEFAULT);
  NSData *nsData = (NSData *)data;
  - buffer.resize(nsData.length);
  - memcpy(buffer.data(), nsData.bytes, buffer.size());
  + buffer.assign((byte *)nsData.bytes, nsData.length);
  dispatch_release(data);
  }
  