PVS-Studio warning V576 for Rhino

DWORD memoccurance;

void CMemLeakDetect::dumpMemoryTrace()
{
  ....
  _stprintf_s(buf, MLD_MAX_NAME_LENGTH,
    _T("Total %d Memory Leaks:")
    _T("%d bytes Total Alocations %d\n\n"),
   numLeaks, totalSize, memoccurance);
  ....
}

This suspicious code was found in Rhino project by PVS-Studio static code analyzer.
Warning message is:
V576 Incorrect format. Consider checking the sixth actual argument of the 'sprintf_s' function. The SIGNED integer type argument is expected. memleakdetect.cpp 261

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