Title: #5739: Replace DS replication plugin name
In efforts to remove problematic language, like master and slave,
DS is replacing "master" with "supplier" in the replication plugin
entry under cn=config.
DS should be able handle upgrades correctly as well.
To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/5739/head:pr5739
git checkout pr5739