/usr/ is in libghc-directory-tree-prof 0.11.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/haskell-packages/
/usr/lib/haskell-packages/ghc/
/usr/lib/haskell-packages/ghc/lib/
/usr/lib/haskell-packages/ghc/lib/directory-tree-0.11.0/
/usr/lib/haskell-packages/ghc/lib/directory-tree-0.11.0/ghc-7.6.3/
/usr/lib/haskell-packages/ghc/lib/directory-tree-0.11.0/ghc-7.6.3/libHSdirectory-tree-0.11.0_p.a
/usr/lib/haskell-packages/ghc/lib/directory-tree-0.11.0/ghc-7.6.3/System/
/usr/lib/haskell-packages/ghc/lib/directory-tree-0.11.0/ghc-7.6.3/System/Directory/
/usr/lib/haskell-packages/ghc/lib/directory-tree-0.11.0/ghc-7.6.3/System/Directory/Tree.p_hi
/usr/share/
/usr/share/doc/
/usr/share/doc/libghc-directory-tree-prof/
/usr/share/doc/libghc-directory-tree-prof/copyright
/usr/share/doc/libghc-directory-tree-prof/changelog.Debian.gz