anchor.diff:      
       let doc = NupkgWriter.nuspecDoc (core, OptionalPackagingInfo.Epmty)
       doc.ToString()
  -    |> normalizeLineEndings
  -    |> shouldEqual result
  +    |> shouldEqual (normalizeLineEndings result)
   
   [<Test>]
   let ``should serialize dependencies``() = 
  
positive.code:     
      let doc = NupkgWriter.nuspecDoc (core, optional)
      doc.ToString() 
      |> normalizeLineEndings
      |> shouldEqual result
  
  [<Test>]
  let ``should not serialize files``() = 
  
negative.code:                        
      let doc = NupkgWriter.nuspecDoc (core, optional)
      doc.ToString()
      |> shouldEqual (normalizeLineEndings result)
  