Fixes permissions on volumes when dir in container is empty

When creating a volume and the volume inside the container is empty, currently the uid/gid is just set to root.  If you want the volume to have the permissions from inside the container you must put a file inside the dir. This resolves this problem
#5080

Docker-DCO-1.1-Signed-off-by: Brian Goff <cpuguy83@gmail.com> (github: cpuguy83)