message: Fix compile error with initialisation of PixelValue
diff: @@ -320,8 +320,8 @@ bool ReplayOutput::AddThumbnail(WindowingData window, ResourceId texID, CompType
  rdcpair<PixelValue, PixelValue> ReplayOutput::GetMinMax()
  {
  - PixelValue minval = {0.0f, 0.0f, 0.0f, 0.0f};
  - PixelValue maxval = {1.0f, 1.0f, 1.0f, 1.0f};
  + PixelValue minval = {{0.0f, 0.0f, 0.0f, 0.0f}};
  + PixelValue maxval = {{1.0f, 1.0f, 1.0f, 1.0f}};
  ResourceId tex = m_pDevice->GetLiveID(m_RenderData.texDisplay.resourceId);
  