/usr/lib/x86_64-linux-gnu/libastyle.so is in libastyle-dev 3.1-1ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libastyle.so.3
/usr/lib/x86_64-linux-gnu/libastyle.so.3