/usr/lib/ghc-doc/hoogle/hoauth.txt is in libghc-hoauth-doc 0.3.5-2build5.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-hoauth-doc/html/hoauth.txt
/usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-hoauth-doc/html/hoauth.txt