This file is indexed.

/usr/lib/linux/4.15.0-43-generic/retpoline is in linux-buildinfo-4.15.0-43-generic 4.15.0-43.46~16.04.1.

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

The actual contents of the file can be viewed below.

1
# retpoline v1.0