That's not an easter egg, that's just crap
Want to see what happens when someone sneaks a ton of cruft into the source tree of a project?
For the base64-challenged, it prints a gigantic ASCII pimp to the screen when you run it with the right flag ("--WHAT"). I found it one day while auditing the source for dubious combinations of letters and numbers.
Classy! Easter eggs are supposed to be subtle.