3 ms·They also write a descriptive message (and nothing else) on stderr as a convention.by hossbeast 9y agoThey also write a descriptive message (and nothing else) on stderr as a convention.Animats 9y agoWhich is usually useless to a GUI or a script.hossbeast 9y agoOther than for informing the user what went wrong (which is specifically one of the things you called out as a problem)