message: EventIndexPanel: Use formatCount to format the room count.
diff: @@ -21,7 +21,7 @@ import * as sdk from '../../../index';
  import Modal from '../../../Modal';
  import SettingsStore, {SettingLevel} from "../../../settings/SettingsStore";
  import AccessibleButton from "../elements/AccessibleButton";
  -import {formatBytes} from "../../../utils/FormattingUtils";
  +import {formatBytes, formatCount} from "../../../utils/FormattingUtils";
  import EventIndexPeg from "../../../indexing/EventIndexPeg";
  export default class EventIndexPanel extends React.Component {
  @@ -115,7 +115,7 @@ export default class EventIndexPanel extends React.Component {
  {_t( "Securely cache encrypted messages locally for them " +
  "to appear in search results, using ")
  } {formatBytes(this.state.eventIndexSize, 0)}
  - {_t( " to store messages from ")} {this.state.roomCount} {_t("rooms.")}
  + {_t( " to store messages from ")} {formatCount(this.state.roomCount)} {_t("rooms.")}
  </div>
  <div>
  <AccessibleButton kind="primary" onClick={this._onManage}>
  