/usr/lib/ghc-doc/hoogle/geniplate.txt is in libghc-geniplate-doc 0.6.0.3-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-geniplate-doc/html/geniplate.txt