/usr/share/doc/libpcre3-dbg/changelog.Debian.gz is in libpcre3-dbg 2:8.39-9.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libpcre3-dbg/../libpcre3/changelog.Debian.gz
/usr/share/doc/libpcre3-dbg/../libpcre3/changelog.Debian.gz