/usr/lib/ghc-doc/hoogle/libghc-hsopenssl-x509-system-doc.txt is in libghc-hsopenssl-x509-system-doc 0.1.0.3-2build7.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-hsopenssl-x509-system-doc/html/HsOpenSSL-x509-system.txt