message: update testProps for Donut
diff: @@ -6,7 +6,7 @@ import {renderStyles} from '../utils/testing'
  const testProps = {
  OcticonButton: {icon: X, label: 'button'},
  - DonutChart: {data: {pending: 1}},
  + Donut: {data: {pending: 1}},
  MergeStatus: {state: 'ready'}
  }
  