/usr/share/doc/ is in ruby-bdb 0.6.5-7build1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/ruby-bdb/
/usr/share/doc/ruby-bdb/docs/
/usr/share/doc/ruby-bdb/docs/sequence.html
/usr/share/doc/ruby-bdb/docs/transaction.html
/usr/share/doc/ruby-bdb/docs/hashlike.html
/usr/share/doc/ruby-bdb/docs/env.html
/usr/share/doc/ruby-bdb/docs/arraylike.html
/usr/share/doc/ruby-bdb/docs/lock.html
/usr/share/doc/ruby-bdb/docs/cursor.html
/usr/share/doc/ruby-bdb/docs/log.html
/usr/share/doc/ruby-bdb/examples/
/usr/share/doc/ruby-bdb/examples/clean.rb
/usr/share/doc/ruby-bdb/examples/replication/
/usr/share/doc/ruby-bdb/examples/replication/example
/usr/share/doc/ruby-bdb/examples/replication/mgr/
/usr/share/doc/ruby-bdb/examples/replication/mgr/b.rb
/usr/share/doc/ruby-bdb/examples/replication/base/
/usr/share/doc/ruby-bdb/examples/replication/base/mc.rb
/usr/share/doc/ruby-bdb/examples/replication/base/ma.rb
/usr/share/doc/ruby-bdb/examples/replication/base/cl.rb
/usr/share/doc/ruby-bdb/examples/replication/base/op.rb
/usr/share/doc/ruby-bdb/examples/replication/base/b.rb
/usr/share/doc/ruby-bdb/examples/record.rb
/usr/share/doc/ruby-bdb/examples/zippy/
/usr/share/doc/ruby-bdb/examples/queue.rb
/usr/share/doc/ruby-bdb/examples/join.rb
/usr/share/doc/ruby-bdb/examples/recno.rb
/usr/share/doc/ruby-bdb/examples/cats.rb
/usr/share/doc/ruby-bdb/examples/func.rb
/usr/share/doc/ruby-bdb/examples/log.rb
/usr/share/doc/ruby-bdb/examples/basic.rb
/usr/share/doc/ruby-bdb/examples/tmp/
/usr/share/doc/ruby-bdb/examples/cursor.rb
/usr/share/doc/ruby-bdb/examples/txn.rb
/usr/share/doc/ruby-bdb/examples/lock.rb
/usr/share/doc/ruby-bdb/examples/wordlist.gz
/usr/share/doc/ruby-bdb/examples/wordtest.gz
/usr/share/doc/ruby-bdb/examples/zeroc.rb
/usr/share/doc/ruby-bdb/bdb.html
/usr/share/doc/ruby-bdb/copyright
/usr/share/doc/ruby-bdb/changelog.Debian.gz