C# Find string mismatch(Protip: it is \r\n).There sure must be some easier way to do this.

gistfile1.txt

       var mismatch = text1.Zip(text2, (x, y) => new { x, y })
                                .Aggregate(new { total = "", mismatch = "" },
                                           (current, t) => new
                                           {
                                               total = current.total + new string(new char[] { t.x }),
                                               mismatch =
                                               (t.x == t.y) ? current.mismatch : current.total,
                                           });