ToJson options lost comma

[snowliy]

At readme location: https://github.com/buglabs/node-xml2json#options-object-for-tojson

Default values:

var options = {
    object: false,
    reversible: false,
    coerce: false,
    sanitize: true,
    trim: true,
    arrayNotation: false // here is lost the comma
    alternateTextNode: false
};