Infinite loop on bad input

[tv42]

Courtesy of https://github.com/dvyukov/go-fuzz

I'll submit a pull request to include this in the tree next..

package main

import (
    "fmt"

    "github.com/lytics/confl"
)

func main() {
    var v map[string]interface{}
    fmt.Println("about to hang")
    confl.Unmarshal([]byte("\x0e9\xbd\xbf\xefr"), &v)
    fmt.Println("never gets here")
}