/usr/share/lintian/overrides/libserf-1-1 is in libserf-1-1 1.3.3-1ubuntu0.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | # This one is intentional
symbols-declares-dependency-on-other-package libserf-private
|