/usr/share/lintian/overrides/libclamav7 is in libclamav7 0.99.2+addedllvm-0ubuntu0.12.04.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 | libclamav7 binary: embedded-library usr/lib/libclamav.so.7.*: zlib
|