CLI auto-generates invalid account name

[r0kh0r]

When creating a wallet via the CLI on testnet, the process fails after setting a password with the following error:

Error: malformed account name 'account-1': identifier must start with a lower-case letter or number and only contain lower-case letters, numbers and _

I did not provide the account name manually. It appears to be auto-generated by the CLI. Since account-1 contains a dash, it violates the identifier rules enforced by the system.

As a workaround, explicitly providing a name works:

oasis wallet create testwallet

Suggested behavior, better experience:
CLI should auto-generate valid account names. Default names should always conform to the identifier rules.