/usr/lib/ghc-doc/hoogle/libghc-executable-path-doc.txt is in libghc-executable-path-doc 0.0.3.1-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-executable-path-doc/html/executable-path.txt