horizontal bar chart labels cut off and sizing issue

I have a fixed size horizontal bar chart with rather long labels.

The label with the biggest data always gets cut off.

https://stackoverflow.com/questions/58587770/c3js-horizontal-bar-chart-labels-cut-off-and-sizing-issue

or

https://jsfiddle.net/gothmogg/w20ta8zg/

It seems to be an internal C3 sizing issue. Am I right there? Is there a way to prevent the labels from beeing cut off?