como faço para habilitar a impressão bonita do mongodb cli? - db.col.find().pretty() não está funcionando

> db.so.insert( { name: "Derick" } );
> db.so.insert( { f: 'Derick', s: 'Rethans', t: 'derickr' } );
> db.so.insert( { name: { f: 'Derick', s: 'Rethans' } } );

> db.so.find();
{ "_id" : ObjectId("520e49a21d7b77441eaf6446"), "name" : "Derick" }
{ "_id" : ObjectId("520e49b11d7b77441eaf6447"), "name" : { "f" : "Derick", "s" : "Rethans" } }

> db.so.find().pretty();
{ "_id" : ObjectId("520e49a21d7b77441eaf6446"), "name" : "Derick" }
{
    "_id" : ObjectId("520e4f895a4563e39f06b030"),
    "f" : "Derick",
    "s" : "Rethans",
    "t" : "derickr"
}
{
    "_id" : ObjectId("520e49b11d7b77441eaf6447"),
    "name" : {
        "f" : "Derick",
        "s" : "Rethans"
    }
}