/usr/share/acl2-8.0dfsg/books/tools/clone-stobj.lisp is in acl2-books-source 8.0dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | (in-package "ACL2")
; cert_param: (reloc-stub)
(include-book "std/stobjs/clone" :dir :system)
|