ceph-disk: clear TERM to avoid libreadline hijinx

The weird output from libreadline users is related to the TERM variable.

Signed-off-by: Sage Weil <sage@inktank.com>
ceph.spec: include partuuid rules in package

Commit f3234c147e083f2904178994bc85de3d082e2836 missed this.

Signed-off-by: Sage Weil <sage@inktank.com>