Update ci.yml

Author: ChrisDenton

.github/workflows/ci.yml

@@ -85,13 +85,18 @@ jobs:
         shell: pwsh
         if: ${{ matrix.name == 'i686-msvc-1' || matrix.name == 'i686-msvc-2' || matrix.name == 'dist-i686-msvc' }}
         run: |
+          # Add the msys2 bin dir to PATH to stop it from prepending itself to PATH
           echo "c:/msys64/usr/bin" >> $env:GITHUB_PATH
+
+          # Get the Visual Studio shell, setting the SDK version to 10.0.22621.0
           $vs = &"${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe" -latest -format value -property installationPath
           &$vs\Common7\Tools\Launch-VsDevShell.ps1 -HostArch Amd64 -Arch x86
           Enter-VsDevshell -VsInstallPath $vs -HostArch Amd64 -Arch x86 -DevCmdArguments "-winsdk=10.0.22621.0"
+
+          # Update the github environment and path.
           $new_env = ls env: | foreach { echo "$($_.key)=$($_.value)" }
           $new_env >> $env:GITHUB_ENV
-          $env:PATH >> $env:GITHUB_PATH
+          foreach ($path in $env:PATH -split ';') { echo $path >> $env:GITHUB_PATH }
 
       - name: disable git crlf conversion
         run: git config --global core.autocrlf false