/usr/lib/ghc-doc/hoogle/vector-space-points.txt is in libghc-vector-space-points-doc 0.1.2.0-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-vector-space-points-doc/html/vector-space-points.txt