[Bug 1098120] Unable to buid images that interact with /etc/groups

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1098120

--- Comment #17 from Paolo Antinori  ---
Centos base image has been officially updated with the new packages, so the
manual installation is no longer needed.

I still have problem connecting to sshd if I do not run the container as
privileged, but I have open the ticket on Docker side now.