cli panics when reporting success

[JustSamAgain]

Currently the CLI panics if we try to report success to it using the following rust code:

client
        .post(minion_api.join("agent/task/complete").unwrap())
        .bearer_auth(minion_token)
        .header("Content-Type", "application/json")
        .body(body)
        .send()

The errormessage is the following one:

Task completed
Not implemented yet

thread 'main' panicked at src/cli/mod.rs:112:22:
Failed to run task: Working directory has unstaged changes; aborting.
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

[timsueberkrueb]

The key here is

Working directory has unstaged changes; aborting.

but of course, we should not panic in this case, but provide a good error message to the user.