* Add update_only parameter for yum module
When using latest, `update_only: yes` will ensure that only existing
packages are updated and no additional packages are installed.
* Update yum.py
Update version added for `update_only` parameter to 2.5
* add unit tests for update_only flag in yum module
* Reenable yum install root tests
No need for sos to test installroot. Something with less deps works
just as well.
* Fix yum installroot.
Fix module import to use fail_json when the modules aren't installed.
Remove wildcard imports
* Lsat task is supposed to remove sos so make that happen
* 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
