/usr/lib/ghc-doc/hoogle/libghc-aeson-pretty-doc.txt is in libghc-aeson-pretty-doc 0.8.5-1build3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-aeson-pretty-doc/html/aeson-pretty.txt