[scripts] Prompt minor fix. Running `cti --master` will start an experiment directly. It should be `cti --master --help`
[scripts] Prompt minor fix.
Running `cti --master` will start an experiment directly.
It should be `cti --master --help`

Closes: #8892

aptos-labs/aptos-core,aptos-labs/aptos-core,libra/libra,libra/libra,aptos-labs/aptos-core,aptos-labs/aptos-core,libra/libra,aptos-labs/aptos-core,aptos-labs/aptos-core,libra/libra,libra/libra,aptos-labs/aptos-core