From the homepage:
"It's a program that displays a badly made ASCII-art animation to punish
you for your typing error - and after that magically launches the
command you meant to launch.
The code is available under an MIT-like license on github - though of
course anybody can write his or her own version in a couple of minutes.
This whole thing is heavily inspired by sl, which displays a steam
locomotive. However, gti is actually nicer than sl as it at least
executes git after the animation. :-)"
ClosesHomebrew/homebrew#14223.
Signed-off-by: Adam Vandenberg <flangy@gmail.com>