message: core: fix nSize initialization in cvIplImage()
diff: @@ -358,7 +358,11 @@ _IplImage
  needed for correct deallocation */
  #if defined(CV__ENABLE_C_API_CTORS) && defined(__cplusplus)
  - _IplImage() {}
  + _IplImage()
  + {
  + memset(this, 0, sizeof(*this)); // valid for POD structure
  + nSize = sizeof(IplImage);
  + }
  _IplImage(const cv::Mat& m) { *this = cvIplImage(m); }
  #endif
  }
  