Title: #5928: [Backport][ipa-4-9] ipa-kra-install: exit if ca_host is overriden
This PR was opened automatically because PR #5613 was pushed to master and backport to
ipa-4-9 is required.
To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/5928/head:pr5928
git checkout pr5928