If a home directory has a trailing slash, the `useradd` command fails to
set the correct selinux contexts for the home directory on creation.
This can lead to various issues, but the one that we came across was
that the ~/.ssh directory and authorized_keys file cannot be read by
sshd and we couldn't log in to the system.
This only manifests if the user is created through the kickstart file
because:
1. `useradd` does not set the selinux contexts when creating the
directory
2. Anaconda runs `restorecon` on the home directory and authorized_keys
file when it creates them, but uses the install-time mount path
`/mnt/sysroot/...` for which selinux does not have contexts.
In most cases we get around this bug because we run `setfiles` on the
tree at the end of our pipelines.
For the ostree case, the relabeling in Anaconda is done correctly.