axis.x.tick.fit documentation is incorrect (backwards)

From the docs:

> If true set, the ticks will be positioned nicely. If false set, the ticks will be positioned according to x value of the data points.

In this [example](http://c3js.org/samples/axes_x_tick_fit.html) however, setting 'fit' to 'true' causes the ticks to be positioned according to the x value of the data points while setting to false actually makes the ticks appear nicely spaced.