/usr/share/lintian/overrides/libsub-name-perl is in libsub-name-perl 0.14-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | # blhc and manual inspection of the build log disagree
libsub-name-perl: hardening-no-fortify-functions usr/lib/*/perl5/*/auto/Sub/Name/Name.so
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