Fix #39 suffix fields are now in good position in loglines

src/logger.c

 	{
 		field = &(fmt->fields[i]);
 		_msgptr = fmt->_msg;
-		_msgptr += fmt->fields->suff?suff_off:0;
+		_msgptr += field->suff?suff_off:0;
 		_msgptr += field->buf_off;
 		switch(field->type)
 		{