message: core: clarify documentation of cv::Mat::deallocate() method
diff: @@ -1468,7 +1468,7 @@ public:
  */
  void release();
  - //! deallocates the matrix data
  + //! internal use function, consider to use 'release' method instead; deallocates the matrix data
  void deallocate();
  //! internal use function; properly re-allocates _size, _step arrays
  void copySize(const Mat& m);
  