fix SAL annotation (#250)
fix SAL annotation (#250)

Co-authored-by: Noel Cross <36042f4422421706df3e373b1e6245e965099ff6@ntdev.microsoft.com>
Co-authored-by: Jon Wiswall <7bd74ef99b1d28e77b9f2949a8d5363003e81c62@microsoft.com>
microsoft/wil,microsoft/wil