anchor.diff:                                  "                      number of vnodes | ~w\r\n",
                                   "                         group level-1 |   \r\n",
                                   "                         group level-2 | ~s\r\n",
  -                                "                   object container(s) | ~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(sec) | ~w\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(sec) | ~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(sec) | ~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(sec) | ~w\r\n",
  +                                "                     watch interval(s) | ~w\r\n",
                                   "                 threshold disk use(%) | ~w\r\n",
                                   "                threshold disk util(%) | ~w\r\n",
                                   "---------------------------------------+------------------\r\n",
  
positive.code:                                 " Config-2: watchdog\r\n",
                                  "-------------------------------+------------------\r\n",
                                  " [rex(rpc-proc)]               |\r\n",
                                  "           watch interval(sec) | ~w\r\n",
                                  "        threshold mem capacity | ~w\r\n",
                                  "-------------------------------+------------------\r\n",
                                  " [cpu]                         |\r\n",
                                  "              watchdog eanbled | ~w\r\n",
                                  "           watch interval(sec) | ~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(sec) | ~w\r\n",
                                  "        threshold input size/s | ~w\r\n",
                                  "       threshold output size/s | ~w\r\n",
                                  "-------------------------------+------------------\r\n",
  
negative.code:                                 "        disk cache data dir    | ~s\r\n",
                                  "        disk cache journal dir | ~s\r\n",
                                  "-------------------------------+------------------\r\n",
                                  " [large object related]\r\n",
                                  "-------------------------------+------------------\r\n",
                                  "           max # of chunk objs | ~w\r\n",
                                  "           chunk object length | ~w\r\n",
  