[5.1] Replace example password with ******** (#3289)

* Replace password with ****

* Replace password with ****

* Replace password with ****

* Replace password with ****

* Replace password with ****

doc/samples/SqlConnectionStringBuilder.cs

@@ -21,12 +21,12 @@ class Program
         // connection string, and you can retrieve and
         // modify any of the elements.
         builder.ConnectionString = "server=(local);user id=ab;" +
-            "password= a!Pass113;initial catalog=AdventureWorks";
+            "password=********;initial catalog=AdventureWorks";
 
         // Now that the connection string has been parsed,
         // you can work with individual items.
         Console.WriteLine(builder.Password);
-        builder.Password = "new@1Password";
+        builder.Password = "********";
 
         // You can refer to connection keys using strings, 
         // as well. When you use this technique (the default

doc/samples/SqlConnectionStringBuilder3.cs

@@ -10,7 +10,7 @@ class Program
         try
         {
             string connectString =
-                "Server=(local);Database=AdventureWorks;UID=ab;Pwd= a!Pass@@";
+                "Server=(local);Database=AdventureWorks;UID=ab;Pwd=********";
             Console.WriteLine("Original: " + connectString);
             SqlConnectionStringBuilder builder =
                 new SqlConnectionStringBuilder(connectString);

doc/samples/SqlConnectionStringBuilder_IntegratedSecurity.cs

@@ -10,7 +10,7 @@ class Program
         try
         {
             string connectString =
-                "Data Source=(local);User ID=ab;Password=MyPassword;" +
+                "Data Source=(local);User ID=ab;Password=********;" +
                 "Initial Catalog=AdventureWorks";
 
             SqlConnectionStringBuilder builder =

doc/samples/SqlConnectionStringBuilder_Remove.cs

@@ -10,7 +10,7 @@ class Program
         try
         {
             string connectString =
-                "Data Source=(local);User ID=ab;Password= a1Pass@@11;" +
+                "Data Source=(local);User ID=ab;Password=********;" +
                 "Initial Catalog=AdventureWorks";
 
             SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder(connectString);

doc/snippets/Microsoft.Data.SqlClient/SqlConnectionStringBuilder.xml

@@ -839,7 +839,7 @@ Connections are considered the same if they have the same connection string. Dif
  The example displays the following text in the console window:  
   
 ```  
-Original: Data Source=(local);Initial Catalog=AdventureWorks;User ID=ab;Password= a1Pass@@11  
+Original: Data Source=(local);Initial Catalog=AdventureWorks;User ID=ab;Password=********  
 Modified: Data Source=(local);Initial Catalog=AdventureWorks;Integrated Security=True  
 Database = AdventureWorks  
 ```