Fix two failing tests
Fix two failing tests

The error message has changed ever so slightly.

k4rtik/cobra,sdomino/cobra,jrossi/cobra,liggitt/cobra,vikstrous/cobra,spf13/cobra,eparis/cobra,akutz/cobra,abhishekgahlot/cobra,gosuri/cobra,jlowdermilk/cobra,anthonyfok/cobra,simlelievre/cobra,nicrioux/cobra