/usr/lib/ghc-doc/hoogle/libghc-blaze-markup-doc.txt is in libghc-blaze-markup-doc 0.8.0.0-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-blaze-markup-doc/html/blaze-markup.txt