message: Add LICENSE.txt to the one-liner.
  Olga discovered that vcpkg-cmake expects a LICENSE.txt in `VCPKG_ROOT`. This includes that in the standalone bundle.
  See
diff: @@ -52,6 +52,7 @@ try {
  New-Item -Path 'out/scripts' -ItemType 'Directory' -Force
  Push-Location "vcpkg-$sha"
  try {
  + Move-Item 'LICENSE.txt' '../out/LICENSE.txt'
  Move-Item 'triplets' '../out/triplets'
  foreach ($exclusion in $scripts_exclusions) {
  Remove-Item "scripts/$exclusion" -Recurse -Force
  