Traditionally in IPA 0 = success, 1 = error and then specific error messages follow from that. Shift the ipa-acme-manage return codes for "not installed" and "not a CA" up by one. https://pagure.io/freeipa/issue/8498 Signed-off-by: Rob Crittenden <rcritten@redhat.com> Reviewed-By: Fraser Tweedale <ftweedal@redhat.com> Reviewed-By: Mohammad Rizwan <myusuf@redhat.com>