Write Windows installer config without BOM

install.ps1

@@ -345,6 +345,11 @@ function Add-UserPath($PathToAdd) {
     [Environment]::SetEnvironmentVariable("Path", $next, "User")
 }
 
+function Write-Utf8NoBom($Path, $Content) {
+    $encoding = New-Object System.Text.UTF8Encoding -ArgumentList $false
+    [System.IO.File]::WriteAllText($Path, $Content, $encoding)
+}
+
 $bindir = Join-Path $Prefix "bin"
 $configDir = Join-Path $HOME ".config\dosh"
 New-Item -ItemType Directory -Force -Path $bindir, $configDir | Out-Null
@@ -446,7 +451,7 @@ if ($ForceConfig -or -not (Test-Path $clientConfig)) {
     $defaultServer = if ($Server) { $Server } else { "user@example.com" }
     $updateRepo = if ($Repo) { $Repo } else { "https://git.palav.dev/Palav/dosh.git" }
     $doshHostLine = if ($DoshHost) { "dosh_host = `"$DoshHost`"" } else { "# dosh_host = `"public.example.com`"" }
-    @"
+    $clientToml = @"
 update_repo = "$updateRepo"
 update_port = $Port
 server = "$defaultServer"
@@ -469,14 +474,15 @@ identity_files = ["~/.ssh/id_ed25519"]
 use_ssh_agent = true
 forward_agent = false
 escape_key = "^]"
-"@ | Set-Content -NoNewline -Encoding utf8 $clientConfig
+"@
+    Write-Utf8NoBom $clientConfig $clientToml
 }
 
 $hostsConfig = Join-Path $configDir "hosts.toml"
 if ($ForceConfig -or -not (Test-Path $hostsConfig)) {
     $defaultServer = if ($Server) { $Server } else { "user@example.com" }
     $hostUdpLine = if ($DoshHost) { "dosh_host = `"$DoshHost`"" } else { "# dosh_host = `"server.example.com`"" }
-    @"
+    $hostsToml = @"
 # Example:
 # [server]
 # ssh = "server"
@@ -490,7 +496,8 @@ ssh = "$defaultServer"
 $hostUdpLine
 port = $Port
 predict = true
-"@ | Set-Content -NoNewline -Encoding utf8 $hostsConfig
+"@
+    Write-Utf8NoBom $hostsConfig $hostsToml
 }
 
 Add-UserPath $bindir