PVS-Studio warning V597 for TPP

void CSHA1::Final()
{
  UINT_8 finalcount[8];
  ...
  memset(finalcount, 0, 8);
  Transform(m_state, m_buffer);
}

This suspicious code was found in TPP project by PVS-Studio static code analyzer.
Warning message is:
V597 The compiler could delete the 'memset' function call, which is used to flush 'finalcount' buffer. The RtlSecureZeroMemory() function should be used to erase the private data. pwiz sha1.cpp 205

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