/usr/lib/ghc-doc/hoogle/old-time.txt is in ghc-doc 7.6.3-10.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/ghc-doc/html/libraries/old-time-1.1.0.1/old-time.txt