anchor.diff:  
       io_lib:format(lists:append([
                                   "-------------------------------+------------------\r\n",
  -                                " Item                          | Value            \r\n",
  +                                "             Item              |       Value      \r\n",
                                   "-------------------------------+------------------\r\n",
                                   " Config-1: basic\r\n",
                                   "--------------------------------------------------\r\n",
  -                                " - Basic\r\n",
  +                                " [basic]\r\n",
                                   "-------------------------------+------------------\r\n",
                                   "                       version | ~s\r\n",
                                   "                using protocol | ~w\r\n",
                                   "                       log dir | ~s\r\n",
                                   "-------------------------------+------------------\r\n",
  -                                " - HTTP server related for REST/S3 API\r\n",
  +                                " [http server related for rest/s3 api]\r\n",
                                   "-------------------------------+------------------\r\n",
                                   "                listening port | ~w\r\n",
                                   "            listening ssl port | ~w\r\n",
                                   "                # of_acceptors | ~w\r\n",
                                   "-------------------------------+------------------\r\n",
  -                                " - Cache-related\r\n",
  +                                " [cache-related]\r\n",
                                   "-------------------------------+------------------\r\n",
                                   "       http cache [true|false] | ~w\r\n",
                                   "            # of cache_workers | ~w\r\n",
  
positive.code:                    AutoCompactionConf_1,
                     AutoCompactionConf_2,
                     AutoCompactionConf_3,
                     %% RING
                     leo_hex:integer_to_hex(leo_misc:get_value('ring_cur',  RingHashes, 0), 8),
                     leo_hex:integer_to_hex(leo_misc:get_value('ring_prev', RingHashes, 0), 8),
  
negative.code:                                 "                      number of vnodes | ~w\r\n",
                                  "                         group level-1 |   \r\n",
                                  "                         group level-2 | ~s\r\n",
                                  "                     object containers | ~s\r\n",
                                  "                               log dir | ~s\r\n",
                                  "---------------------------------------+------------------\r\n",
                                  " Config-2: watchdog\r\n",
                                  "---------------------------------------+------------------\r\n",
                                  " [rex(rpc-proc)]                       |\r\n",
                                  "                     watch interval(s) | ~w\r\n",
                                  "                threshold mem capacity | ~w\r\n",
                                  "---------------------------------------+------------------\r\n",
                                  " [cpu]                                 |\r\n",
                                  "                      watchdog enabled | ~w\r\n",
                                  "                     watch interval(s) | ~w\r\n",
                                  "                threshold cpu load avg | ~w\r\n",
                                  "                 threshold cpu util(%) | ~w\r\n",
                                  "---------------------------------------+------------------\r\n",
                                  " [io]                                  |\r\n",
                                  "                      watchdog enabled | ~w\r\n",
                                  "                     watch interval(s) | ~w\r\n",
                                  "                threshold input size/s | ~w\r\n",
                                  "               threshold output size/s | ~w\r\n",
                                  "---------------------------------------+------------------\r\n",
                                  " [disk]                                |\r\n",
                                  "                      watchdog enabled | ~w\r\n",
                                  "                     watch interval(s) | ~w\r\n",
                                  "                 threshold disk use(%) | ~w\r\n",
                                  "                threshold disk util(%) | ~w\r\n",
                                  "---------------------------------------+------------------\r\n",
  