/usr/lib/x86_64-linux-gnu/libsvn_subr-1.so.1 is in libsvn1 1.6.17dfsg-3ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libsvn_subr-1.so.1.0.0
/usr/lib/x86_64-linux-gnu/libsvn_subr-1.so.1.0.0