This file is indexed.

/etc/etckeeper/commit.d/README is in etckeeper 1.18.2-1ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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Files in this directory are run when there might be changes to commit.
(Before and after packages are installed, upgraded, etc.)
They should commit changes and new files in /etc to repository.