Release v0.2.2: fix Unicode executable description

tests/update.ps1

@@ -7,6 +7,10 @@ function Reject([scriptblock]$Action,[string]$Name) { $rejected=$false; try { &
 $root=Join-Path ([IO.Path]::GetTempPath()) ('KSwitcher-update-tests-'+[guid]::NewGuid().ToString('N'))
 [IO.Directory]::CreateDirectory($root) | Out-Null
 try {
+    $binaryInfo = [Diagnostics.FileVersionInfo]::GetVersionInfo((Resolve-Path -LiteralPath $Executable).Path)
+    $binaryVersion = Get-StableVersion $binaryInfo.FileVersion
+    Assert ($null -ne $binaryVersion) 'executable has a stable version'
+    Assert ($binaryInfo.FileDescription -ceq ('KSwitcher ' + [char]0x2014 + ' native keyboard and clipboard utility')) 'executable description preserves Unicode em dash'
     Assert ((Get-StableVersion 'v0.10.0') -gt (Get-StableVersion 'v0.2.9')) 'numeric versions'
     Assert ($null -eq (Get-StableVersion 'v1.0.0-beta')) 'prerelease rejected'
     Assert ($null -eq (Get-StableVersion 'v1.0.0;whoami')) 'invalid version rejected'
@@ -36,7 +40,7 @@ try {
     ((Get-FileHash -LiteralPath $archive -Algorithm SHA256).Hash+'  KSwitcher-win-x64.zip') | Set-Content -LiteralPath $sum
     Assert-Checksum $archive $sum; ++$script:checks
     $stage=Join-Path $root 'stage'
-    Expand-Release $archive $stage ([version]'0.2.1'); ++$script:checks
+    Expand-Release $archive $stage $binaryVersion; ++$script:checks
     Reject { Expand-Release $archive (Join-Path $root 'wrong-version') ([version]'9.0.0') } 'version mismatch rejected'
     ('0'*64+'  KSwitcher-win-x64.zip') | Set-Content -LiteralPath $sum
     Reject { Assert-Checksum $archive $sum } 'corrupt package rejected'