/usr/share/lua/5.1/apr/ is in lua-apr 0.23.2.dfsg-4.
This file is owned by root:root, with mode 0o755.
..
/usr/share/lua/5.1/apr/serialize.lua
/usr/share/lua/5.1/apr/test/
/usr/share/lua/5.1/apr/test/base64.lua
/usr/share/lua/5.1/apr/test/crypt.lua
/usr/share/lua/5.1/apr/test/date.lua
/usr/share/lua/5.1/apr/test/dbd-child.lua
/usr/share/lua/5.1/apr/test/dbd.lua
/usr/share/lua/5.1/apr/test/dbm.lua
/usr/share/lua/5.1/apr/test/env-child.lua
/usr/share/lua/5.1/apr/test/env.lua
/usr/share/lua/5.1/apr/test/filepath.lua
/usr/share/lua/5.1/apr/test/fnmatch.lua
/usr/share/lua/5.1/apr/test/getopt.lua
/usr/share/lua/5.1/apr/test/helpers.lua
/usr/share/lua/5.1/apr/test/http.lua
/usr/share/lua/5.1/apr/test/init.lua
/usr/share/lua/5.1/apr/test/io_buffer.lua
/usr/share/lua/5.1/apr/test/io_dir.lua
/usr/share/lua/5.1/apr/test/io_file-bidi_pipes.lua
/usr/share/lua/5.1/apr/test/io_file-named_pipe.lua
/usr/share/lua/5.1/apr/test/io_file.lua
/usr/share/lua/5.1/apr/test/io_net-server.lua
/usr/share/lua/5.1/apr/test/io_net.lua
/usr/share/lua/5.1/apr/test/ldap-child.lua
/usr/share/lua/5.1/apr/test/ldap.lua
/usr/share/lua/5.1/apr/test/memcache.lua
/usr/share/lua/5.1/apr/test/misc.lua
/usr/share/lua/5.1/apr/test/pollset.lua
/usr/share/lua/5.1/apr/test/proc.lua
/usr/share/lua/5.1/apr/test/serialize.lua
/usr/share/lua/5.1/apr/test/shm-child.lua
/usr/share/lua/5.1/apr/test/shm.lua
/usr/share/lua/5.1/apr/test/signal.lua
/usr/share/lua/5.1/apr/test/str.lua
/usr/share/lua/5.1/apr/test/thread-child.lua
/usr/share/lua/5.1/apr/test/thread.lua
/usr/share/lua/5.1/apr/test/thread_queue-child.lua
/usr/share/lua/5.1/apr/test/thread_queue.lua
/usr/share/lua/5.1/apr/test/time.lua
/usr/share/lua/5.1/apr/test/uri.lua
/usr/share/lua/5.1/apr/test/user.lua
/usr/share/lua/5.1/apr/test/uuid.lua
/usr/share/lua/5.1/apr/test/xlate.lua
/usr/share/lua/5.1/apr/test/xml.lua