1 1 19.1 Have You Found a Bug? 1 ========================== 1 1 If you are not sure whether you have found a bug, here are some 1 guidelines: 1 1 * If a binary utility gets a fatal signal, for any input whatever, 1 that is a bug. Reliable utilities never crash. 1 1 * If a binary utility produces an error message for valid input, that 1 is a bug. 1 1 * If you are an experienced user of binary utilities, your 1 suggestions for improvement are welcome in any case. 1