[mcpherrinm]

(edited due to inaccuracy)

There is a command line tool called caffeinate that ships with Mac OS. Maybe Apple didn’t like somebody using something so similar their system utility name.

Originally I thought it was the same name, so this seems much less likely now that they're merely similar.

[htfu]

No, that's called caffeinate.

[mcpherrinm]

Ooops, edited my original comment. Blame tab completion for never making me type the end of the name! Thanks for the correction.