message: update Button syntax
diff: @@ -3,20 +3,19 @@ import classnames from 'classnames'
  import PropTypes from 'prop-types'
  import {mapWhitespaceProps} from './props'
  -function Button(props) {
  - const {
  +function Button({
  tag: Tag = 'button',
  children,
  size,
  block,
  - className,
  linkStyle,
  grouped,
  scheme,
  onClick,
  disabled,
  ...rest
  - } = mapWhitespaceProps(props)
  +}) {
  + const {className} = mapWhitespaceProps(rest)
  const classes = classnames(
  className,
  {
  