cli: plugin list silently ignores unexpected positional arguments

[iamrajatrana]

Description

ossie plugin list accepts arbitrary positional arguments, silently ignores them, and exits successfully.

Steps to reproduce

ossie plugin list unexpected
echo $?

Actual behavior

no plugins installed
0

The argument is ignored and the command reports success. Multiple arguments behave the same way.

Expected behavior

Because plugin list does not accept positional arguments, it should reject them with a non-zero exit status and show command usage, consistent with other CLI commands such as plugin remove.

Cause

The listCmd definition does not set an Args validator. Cobra treats a nil validator as accepting arbitrary arguments.

Suggested fix

Add Args: cobra.NoArgs to listCmd and add tests for zero, one, and multiple positional arguments.

Environment

• Apache Ossie commit: 88e0011
• Go: go1.26.2 darwin/arm64
• OS: macOS arm64