Update AdHoc-Backup.ps1

AdHoc-Backup.ps1

@@ -473,12 +473,12 @@ function Backup-SqlDatabases {
 
     # --- PRE-FLIGHT: Concedi a NT AUTHORITY\SYSTEM il permesso server-level 'BACKUP ANY DATABASE' ---
     try {
-        $sqlGrant = @"
+        $sqlGrant = @'
 USE master;
 IF NOT EXISTS (SELECT 1 FROM sys.server_principals WHERE name = N'NT AUTHORITY\SYSTEM')
     CREATE LOGIN [NT AUTHORITY\SYSTEM] FROM WINDOWS;
 GRANT BACKUP ANY DATABASE TO [NT AUTHORITY\SYSTEM];
-"@
+'@
         $tmpGrant = Join-Path $Paths.SqlStage "grant_SYSTEM_server.sql"
         $sqlGrant | Out-File -LiteralPath $tmpGrant -Encoding ASCII -Force