message: Fix scoped tool setup on Windows
diff: @@ -215,11 +215,12 @@ Function Add-ComposertoolHelper() {
  $scoped_dir_suffix = (Get-FileHash -InputStream $release_stream -Algorithm sha256).Hash
  $scoped_dir = "$composer_bin\_tools\$tool-$scoped_dir_suffix"
  $unix_scoped_dir = $scoped_dir.replace('\', '/')
  - if((composer show $prefix$tool -d $unix_scoped_dir -a 2>&1 | findstr '^type *: *composer-plugin') -and ($composer_args -ne '')) {
  - composer config -d $unix_scoped_dir --no-plugins allow-plugins."$prefix$release" true >$null 2>&1
  - }
  if(-not(Test-Path $scoped_dir)) {
  New-Item -ItemType Directory -Force -Path $scoped_dir > $null 2>&1
  + Set-Content -Path $scoped_dir\composer.json -Value "{}"
  + if((composer show $prefix$tool $tool_version -d $unix_scoped_dir -a 2>&1 | findstr '^type *: *composer-plugin') -and ($composer_args -ne '')) {
  + composer config -d $unix_scoped_dir --no-plugins allow-plugins."$prefix$tool" true >$null 2>&1
  + }
  composer require $prefix$release -d $unix_scoped_dir $composer_args >$null 2>&1
  }
  [System.Environment]::SetEnvironmentVariable(($tool.replace('-', '_') + '_bin'), "$scoped_dir\vendor\bin")
  