This file is indexed.

/usr/lib/x86_64-linux-gnu/libsignon-extension.so is in signond-dev 8.58+16.04.20151106-0ubuntu1.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/lib/x86_64-linux-gnu/libsignon-extension.so.1.0.0