Invalid syntax.
error: Numeric value 'a' for <vcpu> option is malformed or out of range

An out-of-range vCPU number deserves a diagnostic, too.
error: invalid argument: requested vcpu '100' is not present in the domain

Negative number
error: Numeric value '-100' for <vcpu> option is malformed or out of range

missing argument
error: vcpupin: Missing vCPU number in pin mode.

An out-of-range vCPU number when get information with live flag
error: vcpu 100 is out of range of live cpu count 2

An out-of-range vCPU number when get information without flag
error: vcpu 100 is out of range of live cpu count 2

An out-of-range vCPU number when get information with config flag
error: vcpu 100 is out of range of persistent cpu count 2

An out-of-range vCPU number when get information with current flag
error: vcpu 100 is out of range of live cpu count 2


## Exit code: 1