Inaccurate error message for negative ID

[nus-se-script]

I put -1 as the customer id when calling customer view command. Instead of getting an exception message indicating invalid CUSTOMER ID, which is displayed for out-of-range indexes, I got Invalid Command Format.

---

_{[original: nus-cs2103-AY2324S1/pe-interim#6016] [original labels: type.FunctionalityBug severity.Medium]}

[juliusgambe]

Team's Response

Rejected due to planned enhancements #10 - For inputting a negative value for certain numerical parameters currently results in "Invalid Command Format". It should have a more specific error message which is a feature flaw.

Furthemore, the UG already states the definition of the correct command format when DELIVERY_ID and CUSTOMER_ID are included:

Duplicate status (if any):

--