Fix #1

src/logger.c

 		strncpy(fmt->_msg + suff_off, fmt->suffix,
 			fmt->buflen[1]);
 		//TODO check errors
-		fmt->_msg[suff_off+fmt->buflen[1]] = '\n';
-		fmt->_msg[suff_off+fmt->buflen[1]+1] = '\0';
+		fmt->_msg[suff_off+fmt->buflen[1]-1] = '\n';
+		fmt->_msg[suff_off+fmt->buflen[1]] = '\0';
 	}
 	else
 	{