anchor.diff:            {error, caching} = qlc_SUITE:read_error_logger(),
             {error, caching} = qlc_SUITE:read_error_logger(),
             1 = length(F(warning_msg)),
  -          {error, caching} = qlc_SUITE:read_error_logger(),
  -          {error, caching} = qlc_SUITE:read_error_logger(),
  +          {warning, caching} = qlc_SUITE:read_error_logger(),
  +          {warning, caching} = qlc_SUITE:read_error_logger(),
             1 = length(F(info_msg)),
             {info, caching} = qlc_SUITE:read_error_logger(),
             {info, caching} = qlc_SUITE:read_error_logger(),
  
positive.code:             {error, Why};
          {info, Why} ->
              {info, Why};
          {error, Pid, Tuple} ->
              {error, Pid, Tuple}
      after 1000 ->
  
negative.code:           L = F(info_msg),
            {info, sorting} = qlc_SUITE:read_error_logger(),
            L = F(warning_msg),
            {warning, sorting} = qlc_SUITE:read_error_logger(),
            qlc_SUITE:uninstall_error_logger(),
            ets:delete(E1),
            ets:delete(E2)">>],
  