storage: Expect empty param in REST requests (#8167)
storage: Expect empty param in REST requests (#8167)

Empty parameter was forgotten to be added to restQueries() function,
scanning with deep parameter wasn't working properly for distributed
setup.
vadmeste/minio,harshavardhana/minio,NitishT/minio,aead/minio,harshavardhana/minio,donatello/minio,NitishT/minio,NitishT/minio,harshavardhana/minio,fwessels/minio,harshavardhana/minio,harshavardhana/minio,harshavardhana/minio,krisis/minio,krisis/minio,aead/minio,vadmeste/minio,aead/minio,fwessels/minio,balamurugana/minio,donatello/minio,aead/minio,fwessels/minio,balamurugana/minio,aead/minio,harshavardhana/minio,minio/minio,NitishT/minio,aead/minio,harshavardhana/minio,fwessels/minio,aead/minio,aead/minio,minio/minio