/usr/share/lintian/overrides/libutempter0 is in libutempter0 1.1.6-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | # This is intentional, we want utempter with these permissions.
libutempter0: setgid-binary usr/lib/*/utempter/utempter 2755 root/utmp
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