The Linux kernel seems to have a centisecond obsession too. Probably from way back when HZ was 100 and your computer woke up once every centiseecond to make sure it still had nothing to do.
I once set up a schedule where I would open the gitconfig manpage and read at least one section of the settings. My gitconfig file growed to over 200 lines then.
Quite a lot of stuff isn't very helpful in there though.
The value is in 0.1s (centiseconds) of seconds. So 20 means 2 seconds.
[help]
autocorrect = 20
OR run git config --global help.autocorrect 20