trace $CLI bundle exec -- echo "hello, world"

# The CLI should not parse the --help flag and should try to run it as an executable
# instead.
errcode trace $CLI bundle exec -- --help

# The error message should include the exit code.
errcode trace $CLI bundle exec -- bash -c "exit 5"

# stderr should also be passed through.
trace $CLI bundle exec -- python3 -c "import sys; print('Hello', file=sys.stderr)"