Title: #5879: [Backport][ipa-4-9] man page: update ipa-server-upgrade.1
This PR was opened automatically because PR #5878 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/5879/head:pr5879
git checkout pr5879