message: add m + p utils to StateLabel
diff: @@ -3,6 +3,7 @@ import PropTypes from 'prop-types'
  import Octicon, {GitMerge, IssueClosed, IssueOpened, IssueReopened} from '@githubprimer/octicons-react'
  import classnames from 'classnames'
  import {colors} from './theme'
  +import {mapWhitespaceProps} from './props'
  const stateColorMap = {
  open: 'green',
  @@ -36,7 +37,9 @@ function getIconComponent(icon, children) {
  return null
  }
  -const StateLabel = ({state, scheme, small, icon, children}) => {
  +const StateLabel = (props) => {
  + const {state, scheme, small, children, className} = mapWhitespaceProps(props)
  + let {icon} = props;
  if (icon !== false) {
  icon = icon || getOcticon(state)
  }
  @@ -50,6 +53,7 @@ const StateLabel = ({state, scheme, small, icon, children}) => {
  return (
  <span
  className={classnames(
  + className,
  'State',
  {
  'State--small': small
  