Typo: suboptimial should be suboptimal

[HerrCai0907]

When I use --converge, compile throw a Error Last converge was suboptimial. Should it be Last converge was suboptimal.?

[romdotdog]

assemblyscript/cli/index.js

Line 838 in 291f9b6

stderr.write(`Last converge was suboptimial.${EOL}`);

Yes, it should be suboptimal.