sanitize options does not work in code

[l2x]

for {
        // read a chunk
        n, err := fi.Read(buf)
        if err != nil && err != io.EOF { panic(err) }
        if n == 0 { break }

        // write a chunk
        if _, err := fo.Write(buf[:n]); err != nil {
            panic(err)
        }
    }
}

it always escape & to & amp;

[joshbruce]

Closing as stale and not part of our current focus. See #1106 and #1216.