/usr/share/acl2-4.3/books/fix-cert/test2.acl2 is in acl2-books-source 4.3-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3
(ld "test-pkg2.lsp") (certify-book "test2" 1 t :ttags :all)