Arguments of an internal command are not considered if it is forced over the external command.

[elhimov]

Steps to reproduce:

1. Prepare environment with the external command that overrides the internal one.

$ ./tt init && touch modules/version && chmod +x modules/version

2. Run internal command w/o arguments.

$ ./tt -I version
Tarantool CLI version 2.8.1, linux/amd64. commit: 19e323b1 (v2.8.1-9-g19e323b1)

3. Run internal command w/ argument.

$ ./tt -I version --short
Tarantool CLI version 2.8.1, linux/amd64. commit: 19e323b1 (v2.8.1-9-g19e323b1)

Actual:
Argument doesn't affect the command output.

Expected:
Argument affects the command output.