/usr/share/lintian/overrides/pdns-backend-sqlite3 is in pdns-backend-sqlite3 3.0-1.1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | # Using dbconfig-common, no need for a templates file in our package.
pdns-backend-sqlite3: no-debconf-templates
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