anchor.diff:  
           let openWrite rt =
               let fullpath = Commands.getfullpath dir
  -            match rt with 
  +            match rt with
               | Append p -> File.AppendText( p |> fullpath)
               | Overwrite p -> new StreamWriter(new FileStream(p |> fullpath, FileMode.Create))
   
           let outF fCont cmdArgs =
               match redirect.Output with
  -            | RedirectTo.Inherit ->  
  +            | RedirectTo.Inherit ->
                   use toLog = redirectToLog ()
                   fCont { cmdArgs with RedirectOutput = Some (toLog.Post); RedirectError = Some (toLog.Post) }
               | Output r ->
  
positive.code:       ILDASM : string
        ILASM : string
        PEVERIFY : string
        Directory: string 
        DotNetExe: string
        DefaultPlatform: string}
  
  
negative.code: 
      let rm dir path =
          let p = path |> getfullpath dir
          if File.Exists(p) then
              (log "rm %s" p) |> ignore
              File.Delete(p)
          else
  