ipa-kra-install manpage: document domain-level 1
ipa-kra-install man page was missing a specific section for domain level 1.
This commits also fixes a wrong option short name (for --log-file) and
indents the text corresponding to -p DM_PASSWORD
https://pagure.io/freeipa/issue/6922
Reviewed-By: Tomas Krizek <tkrizek@redhat.com>