Volume in the created image has different permissions

[vrutkovs]

buildah version 0.1 (image-spec 1.0.0-rc5, runtime-spec 1.0.0-rc5) from buildah-0.1.0-2.git597d2ab.fc26.x86_64

Dockerfile:

FROM busybox
RUN mkdir /vol && touch /vol/foo
VOLUME /vol
RUN touch /vol/bar
CMD ["cat", "/vol/bar"]

Permissions in the image using docker build are drwxr-xr-x:

$ sudo docker run -ti test/04:dockerapi ls -la /vol
total 8
drwxr-xr-x    2 root     root          4096 Jun 19 18:00 .

Buildah image has drw-------:

$ sudo docker run -ti test/04:buildah ls -la /vol
total 8
drw-------    2 root     root          4096 Jun 19 18:03 .

[vrutkovs]

Closed by #154