anchor.diff:  
   [<Test>]
   [<Ignore("Remove to run test")>]
  -let ``Recognizes one``() = 
  +let ``Recognizes one`` () = 
       let converted = convert ("   " + "\n" +
                                "  |" + "\n" +
                                "  |" + "\n" +
  
positive.code: 
  [<Test>]
  [<Ignore("Remove to run test")>]
  let ``Recognizes eight``() = 
      let converted = convert (" _ " + "\n" +
                               "|_|" + "\n" +
                               "|_|" + "\n" +
  
negative.code: 
  [<Test>]
  [<Ignore("Remove to run test")>]
  let ``Recognizes two`` () = 
      let converted = convert (" _ " + "\n" +
                               " _|" + "\n" +
                               "|_ " + "\n" +
  