fix: SQL Server region tags (GoogleCloudPlatform#1106)

Author: shubha-rajan

cloud_sql/sqlserver/pdo/src/Votes.php

@@ -109,7 +109,7 @@ public function insertVote(string $value) : bool
         $conn = $this->connection;
         $res = false;
 
-        # [START cloud_sql_sqlserver_pdo_connection]
+        # [START cloud_sql_server_pdo_connection]
         // Use prepared statements to guard against SQL injection.
         $sql = "INSERT INTO votes (time_cast, vote_value) VALUES (GETDATE(), :voteValue)";
 
@@ -126,7 +126,7 @@ public function insertVote(string $value) : bool
                 $e
             );
         }
-        # [END cloud_sql_sqlserver_pdo_connection]
+        # [END cloud_sql_server_pdo_connection]
 
         return $res;
     }

cloud_sql/sqlserver/pdo/src/app.php

@@ -41,7 +41,7 @@
     $hostname = getenv('DB_HOSTNAME') ?: '127.0.0.1';
 
     try {
-        // # [START cloud_sql_sqlserver_pdo_create]
+        // # [START cloud_sql_server_pdo_create]
         // // $username = 'your_db_user';
         // // $password = 'yoursupersecretpassword';
         // // $dbName = 'your_db_name';
@@ -50,15 +50,15 @@
         $dsn = sprintf('sqlsrv:server=%s;Database=%s', $hostname, $dbName);
 
         // Connect to the database.
-        # [START cloud_sql_sqlserver_pdo_timeout]
+        # [START cloud_sql_server_pdo_timeout]
         // Here we set the connection timeout to five seconds and ask PDO to
         // throw an exception if any errors occur.
         $conn = new PDO($dsn, $username, $password, [
             PDO::ATTR_TIMEOUT => 5,
             PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
         ]);
-        # [END cloud_sql_sqlserver_pdo_timeout]
-        # [END cloud_sql_sqlserver_pdo_create]
+        # [END cloud_sql_server_pdo_timeout]
+        # [END cloud_sql_server_pdo_create]
     } catch (TypeError $e) {
         throw new RuntimeException(
             sprintf(