message: Improve default placeholder text on SelectControl
diff: @@ -106,7 +106,7 @@ export default class SelectControl extends React.PureComponent {
  }
  render() {
  // Tab, comma or Enter will trigger a new option created for FreeFormSelect
  - const placeholder = this.props.placeholder || t('Select %s', this.state.options.length);
  + const placeholder = this.props.placeholder || t('%s option(s)', this.state.options.length);
  const selectProps = {
  multi: this.props.multi,
  name: `select-${this.props.name}`,
  