anchor.diff:  
   set_group_user_privileges(GID, UID, Privileges, ReqParams) ->
       {RestAddress, Headers, Options} = ReqParams,
  +    Body = jiffy:encode({[
  +        {privileges, Privileges}
  +    ]}),
       Response =
           do_request(
               RestAddress ++ "/groups/" ++ binary_to_list(GID) ++ "/users/" ++
                   binary_to_list(UID) ++ "/privileges",
  -            Headers, put, [], Options
  +            Headers, put, Body, Options
           ),
       %% TODO remove below line after tests
       ?PRINT(Response),
  
positive.code:                 user_group_test,
                  many_users_group_test
              ]
          }
          ,
          {
              group_rest_module_test_group,
              [],
  
negative.code:                 group_privileges_test,
                  group_spaces_test
              ]
          }
  %%         ,
  %%         {
  %%             spaces_rest_module_test_group,
  %%             [],
  %%             [
  %%                 spaces_crud_test
  %%             ]
  %%         }
      ].
  
  %%%===================================================================
  