src/vs/platform/files/node/watcher/nsfw/nsfwWatcherService.ts/NsfwWatcherService/normalizeRoots
class NsfwWatcherService:	protected normalizeRoots(roots: IWatcherRequest[]): IWatcherRequest[] {
		// Normalizes a set of root paths by removing any root paths that are
		// sub-paths of other roots.
		return roots.filter(root => roots.every(otherRoot => {
			return !(root.path.length > otherRoot.path.length && isEqualOrParent(root.path, otherRoot.path));
		}));
	}