anchor.diff:  -define(NS_LOG, "ns_log").
   
   get_current_version() ->
  -    {2,2,0}.
  +    {3,0,0}.
   
   % Allow all keys to be mergable.
   
  
positive.code:         false ->
              rename_file(OldVersionNsLog, NsLog)
      end.
  
  upgrade_1_7_1_to_1_7_2_test() ->
      DefaultCfg = [{rest, [{port, 8091}]},
  
negative.code:              upgrade_config_from_1_8_1_to_2_0(Config)];
          {value, {2,0}} ->
              [{set, {node, node(), config_version}, {2,2,0}} |
               upgrade_config_from_2_0_to_2_2_0(Config)];
          {value, {2,2,0}} ->
              [{set, {node, node(), config_version}, {3,0,0}} |
               upgrade_config_from_2_2_0_to_3_0(Config)]
      end.
  
  upgrade_config_from_1_7_to_1_7_1() ->
  