Clean up metacache saver (#13225)
Clean up metacache saver (#13225)

Don't report success before the listing has actually finished. 
This will make stop conditions more clear.
balamurugana/minio,krisis/minio,vadmeste/minio,vadmeste/minio,balamurugana/minio,minio/minio,minio/minio,donatello/minio,krisis/minio,donatello/minio