No the little drain is for the fuel pump boss, on the carb'd cases. On your FI case, you have no drain because this boss is either filled in, or not even drilled. Its for returning oil to the sump after it has lubricated the pushrod. Blowby by from case pressure could also force oil up through the pushrod guide and into the drain (nothing to really worry about). But, since you don't have the drain, you don't have to worry about anything.
Hehe , calm down guys, all you have to do is look at your case and if you see a small hole, and a larger hole above it you have a Carb'd case... if you DO NOT have any holes, you're in luck.... you have an FI case.
-Bobby