Development in !3186 identified that as of VS 2019 RC 4 the `VC/Redist/MSVC/14.20.27508/*/Microsoft.VC*.{CRT,MFC,OpenMP,...}` directories are named as `VC141` instead of `VC142` even though they correspond to the v142 toolset. That MR left a FIXME comment to update `Modules/InstallRequiredSystemLibraries.cmake` to look for `VC142` instead of `VC141` once a VS update fixes it.