// to set ACL for a bucket, this is a dummy call
// only responds success if the ACL is private.
func (api objectAPIHandlers) PutObjectACLHandler(w http.ResponseWriter, r *http.Request) {
	ctx := newContext(r, w, "PutObjectACL")

	defer logger.AuditLog(ctx, w, r, mustGetClaimsFromToken(r))

	vars := mux.Vars(r)
	bucket := vars["bucket"]
	object, err := unescapePath(vars["object"])
	if err != nil {

		// GetObjectACL - this is a dummy call.
		router.Methods(http.MethodGet).Path("/{object:.+}").
			HandlerFunc(s3APIMiddleware(api.GetObjectACLHandler, traceHdrsS3HFlag)).
			Queries("acl", "")
		// PutObjectACL - this is a dummy call.
		router.Methods(http.MethodPut).Path("/{object:.+}").
			HandlerFunc(s3APIMiddleware(api.PutObjectACLHandler, traceHdrsS3HFlag)).
			Queries("acl", "")
		// GetObjectTagging