/usr/lib/ghc-doc/hoogle/libghc-sockaddr-doc.txt is in libghc-sockaddr-doc 0.0.0-8build2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-sockaddr-doc/html/sockaddr.txt