anchor.diff:            rate_info = init_rate_info() :: #rate_info{},
             streams = []                 :: [{stream(), [string()]}],
             timestamp = timestamp()      :: timestamp(),
  -          ticker = none                :: pid() | 'none' | 'force',
  +          ticker = none                :: pid() | 'none',
             traces_explored = 0          :: non_neg_integer(),
             traces_ssb = 0               :: non_neg_integer(),
             traces_total = 0             :: non_neg_integer(),
  
positive.code:     0 -> ok
    end.
  
  stop_ticker(Ticker) ->
    case is_pid(Ticker) of
      true ->
        Ticker ! {stop, self()},
        progress_clear(),
        receive
          stopped -> ok
        end;
      false -> ok
    end.
  
  %%------------------------------------------------------------------------------
  
negative.code:   io_lib:format("~2..0w ~s ~4w ~2..0w:~2..0w:~2..0w",
                  [Day, Mstr, Year, Hour, Minute, Second]).
  
  printout(#logger_state{ticker = Ticker} = State, Format, Data)
    when Ticker =/= none ->
    progress_clear(),
  