anchor.diff:              %% Directory exists, try again
               create_tmp_dir();
           {error, Reason} ->
  -            concuerror_log:log(0, "error: ~p\n", [Reason]),
  +            concuerror_log:log(0, "\nerror: ~p\n", [Reason]),
               error
       end.
   
  
positive.code: 
  %% Log a list of error or warning descriptors, as returned by compile:file/2.
  log_list(List, Pre, Verbosity) ->
      Strings = [io_lib:format("~s:~p: ~s ~s\n",
                      [File, Line, Pre, Mod:format_error(Descr)])
                || {File, Info} <- List, {Line, Mod, Descr} <- Info],
      concuerror_log:log(Verbosity, lists:flatten(Strings)),
  
negative.code:     case create_tmp_dir() of
          {ok, DirName} ->
              ets:insert(?NT_INSTR, {?INSTR_TEMP_DIR, DirName}),
              concuerror_log:log(0, "Instrumenting files.."),
              InstrOne =
                  fun(File) ->
                      instrument_and_compile_one(File, Includes,
  