Add a comment about path.Clean
Add a comment about path.Clean

Signed-off-by: Matt Moore <866b498749d560dfd4b9805e44d1fa0b8bc948c7@vmware.com>

containerd/stargz-snapshotter,containerd/stargz-snapshotter,containerd/stargz-snapshotter,containerd/stargz-snapshotter