The `fuse-overlayfs` package provided by Ubuntu up to 19.10, is not
recent enough and causes errors on `buildah commit`, for instance.
Adjust the rootless tutorial to point this out and to provide more
detailed instructions on how to obtain `fuse-overlayfs` and configure it
for use by `libpod`.
Signed-off-by: Leonardo Rochael Almeida <leorochael@gmail.com>
Touch up a number of formating issues for XDG_RUNTIME_DIRS in a number
of man pages. Make use of the XDG_CONFIG_HOME environment variable
in a rootless environment if available, or set it if not.
Also added a number of links to the Rootless Podman config page and
added the location of the auth.json files to that doc.
Signed-off-by: TomSweeneyRedHat <tsweeney@redhat.com>
