anchor.diff:  let _ = sprintf "
   
               %-O" -10
  +let _ = List.map (sprintf @"%A
  +                           ")
  +let _ = (10, 12) ||> sprintf "%A
  +                              %O"
   """
   
       let file = "/home/user/Test.fsx"
  
positive.code: let _ = printfn \"\"\"
              %-A
                  \"\"\" -10
  "
  
      let file = "/home/user/Test.fsx"
  
negative.code:                      (9, 18, 9, 21); 
                       (10, 18, 10, 20);
                       (12, 12, 12, 14); 
                       (15, 12, 15, 14);
                       (16, 28, 16, 29); 
                       (18, 30, 18, 31);
                       (19, 30, 19, 31)|]
  
  [<Test>]
  let ``Printf specifiers for triple-quote strings`` () = 
  