anchor.diff:      |> appendIfTrue parameters.Silent "-s"
       |> appendIfTrue html "-t"
       |> appendIfTrue html htmlText
  +    |> appendIfTrue xml "-t"
  +    |> appendIfTrue xml xmlText
       |> appendIfTrue (isNotNullOrEmpty excludes) (sprintf "-x\" \"%s" excludes)
       |> appendIfTrue (isNotNullOrEmpty includes) (sprintf "-i\" \"%s" includes)
       |> appendFileNamesIfNotNull assemblies
  
positive.code: let MSpecDefaults = 
      { ToolPath = findToolInSubPath "mspec-clr4.exe" (currentDirectory @@ "tools" @@ "MSpec")
        HtmlOutputDir = null
        WorkingDir = null
        Silent = false
        ExcludeTags = []
  
negative.code:       ToolPath : string
        /// Output directory for html reports (optional).
        HtmlOutputDir : string
        /// Output file path for xml reports (optional).
        XmlOutputPath : string
        /// Working directory (optional)
        WorkingDir : string
        /// Can be used to run MSpec in silent mode.
  