message: docs(exhaustMap): fix example
diff: @@ -38,12 +38,12 @@ export function exhaustMap<T, I, R>(project: (value: T, index: number) => Observ
  * ## Example
  * Run a finite timer for each click, only if there is no currently active timer
  * ```ts
  - * import { fromEvent, } from 'rxjs';
  + * import { fromEvent, interval } from 'rxjs';
  * import { exhaustMap, take } from 'rxjs/operators';
  *
  * const clicks = fromEvent(document, 'click');
  * const result = clicks.pipe(
  - * exhaustMap((ev) => interval(1000).pipe(take(5))),
  + * exhaustMap(ev => interval(1000).pipe(take(5)))
  * );
  * result.subscribe(x => console.log(x));
  * ```
  