message: update UnderlineNav syntax
diff: @@ -7,8 +7,8 @@ import {mapWhitespaceProps} from './props'
  export const ITEM_CLASS = 'UnderlineNav-item no-underline'
  export const SELECTED_CLASS = 'selected'
  -export default function UnderlineNav(props) {
  - const {actions, align, children, full, label, className} = mapWhitespaceProps(props)
  +export default function UnderlineNav({actions, align, children, full, label, ...rest}) {
  + const {className} = mapWhitespaceProps(rest)
  const classes = classnames(className, 'UnderlineNav', align && `UnderlineNav--${align}`, full && 'UnderlineNav--full')
  const mappedChildren = React.Children.map(children, child => {
  