/usr/lib/ghc-doc/hoogle/cipher-camellia.txt is in libghc-cipher-camellia-doc 0.0.2-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-cipher-camellia-doc/html/cipher-camellia.txt