Yes, even something trivial like "fixes whitespace" is better then nothing, but even better is squashing or amending a previous commit. Some systems prevent thi

Yes, even something trivial like "fixes whitespace" is better then nothing, but even better is squashing or amending a previous commit. Some systems prevent this...at my workplace once you've pushed to origin, there is no changing the past so saying something like "Added derp.java to fix broken build from <commit hash>" is very helpful.