Changes to the metadata format were approved here:
https://github.com/ansible/proposals/issues/54
* Update documentation to the new metadata format
* Changes to metadata-tool to account for new metadata
* Add GPL license header
* Add upgrade subcommand to upgrade metadata version
* Change default metadata to the new format
* Fix exclusion of non-modules from the metadata report
* Fix ansible-doc for new module metadata
* Exclude metadata version from ansible-doc output
* Fix website docs generation for the new metadata
* Update metadata schema in valiate-modules test
* Update the metadata in all modules to the new version
* Add --installroot to YUM and DNF modules, issue #11310
This continues ansible-modules-core#1558, and
ansible-modules-core#1669
Allow specifying installroot for the yum and dnf modules
to install and remove packages in a location other than /.
* Remove empty aliases
* Simpler installroot set default logic
Toshio Kuratomi
Matt Clay
berenddeschouwer
James Cammarata