/usr/share/hakyll/example/ is in libghc-hakyll-dev 4.5.4.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/hakyll/example/about.rst
/usr/share/hakyll/example/contact.markdown
/usr/share/hakyll/example/css/
/usr/share/hakyll/example/css/default.css
/usr/share/hakyll/example/images/
/usr/share/hakyll/example/images/haskell-logo.png
/usr/share/hakyll/example/index.html
/usr/share/hakyll/example/posts/
/usr/share/hakyll/example/posts/2012-08-12-spqr.markdown
/usr/share/hakyll/example/posts/2012-10-07-rosa-rosa-rosam.markdown
/usr/share/hakyll/example/posts/2012-11-28-carpe-diem.markdown
/usr/share/hakyll/example/posts/2012-12-07-tu-quoque.markdown
/usr/share/hakyll/example/site.hs
/usr/share/hakyll/example/templates/
/usr/share/hakyll/example/templates/archive.html
/usr/share/hakyll/example/templates/default.html
/usr/share/hakyll/example/templates/post-list.html
/usr/share/hakyll/example/templates/post.html