function until(test, iteratee, callback) {
    whilst(function() {
        return !test.apply(this, arguments);
    }, iteratee, callback);
}
Repeatedly call `iteratee` until `test` returns `true`. Calls `callback` when
stopped, or an error occurs. `callback` will be passed an error and any
arguments passed to the final `iteratee`'s callback.

The inverse of [whilst]{@link module:ControlFlow.whilst}.

@name until
@static
@memberOf module:ControlFlow
@method
@see [async.whilst]{@link module:ControlFlow.whilst}
@category Control Flow
@param {Function} test - synchronous truth test to perform before each
execution of `iteratee`. Invoked with ().
@param {AsyncFunction} iteratee - An async function which is called each time
`test` fails. Invoked with (callback).
@param {Function} [callback] - A callback which is called after the test
function has passed and repeated execution of `iteratee` has stopped. `callback`
will be passed an error and any arguments passed to the final `iteratee`'s
callback. Invoked with (err, [results]);