[atomic-wg] Issue #329: Guidelines have dnf -y install <package>; dnf clean all; instead of using "&&"

[Stanislav Ochotnicky]

sochotni reported a new issue against the project: `atomic-wg` that you are following:
``
&& should be used so an error during install will result in failed build instead of possibly broken build
``

To reply, visit the link below or just reply to this email
https://pagure.io/atomic-wg/issue/329