php html log error format

Hi, I activated log error format with HTML. The result is not as I expected because there is not carriage return before starting a new error message. Sometimes there is http hyperling to PHP documentation so I know HTML format is working. I tryed to add "error_prepend" string parameter with "<br>" but it seems not working... If someone could send me his/her own PHP.INI conf file, for the error handling section, I would appreciate very much... I was asking myself if warning is displayed the same maner as error... Thanks.