/usr/ is in golang-goptlib-dev 0.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/gocode/
/usr/share/gocode/src/
/usr/share/gocode/src/git.torproject.org/
/usr/share/gocode/src/git.torproject.org/pluggable-transports/
/usr/share/gocode/src/git.torproject.org/pluggable-transports/goptlib.git/
/usr/share/gocode/src/git.torproject.org/pluggable-transports/goptlib.git/pt.go
/usr/share/gocode/src/git.torproject.org/pluggable-transports/goptlib.git/args_test.go
/usr/share/gocode/src/git.torproject.org/pluggable-transports/goptlib.git/socks.go
/usr/share/gocode/src/git.torproject.org/pluggable-transports/goptlib.git/pt_test.go
/usr/share/gocode/src/git.torproject.org/pluggable-transports/goptlib.git/args.go
/usr/share/gocode/src/git.torproject.org/pluggable-transports/goptlib.git/socks_test.go
/usr/share/doc/
/usr/share/doc/golang-goptlib-dev/
/usr/share/doc/golang-goptlib-dev/examples/
/usr/share/doc/golang-goptlib-dev/examples/dummy-server/
/usr/share/doc/golang-goptlib-dev/examples/dummy-server/dummy-server.go
/usr/share/doc/golang-goptlib-dev/examples/dummy-client/
/usr/share/doc/golang-goptlib-dev/examples/dummy-client/dummy-client.go
/usr/share/doc/golang-goptlib-dev/changelog.Debian.gz
/usr/share/doc/golang-goptlib-dev/README
/usr/share/doc/golang-goptlib-dev/copyright
/usr/share/lintian/
/usr/share/lintian/overrides/
/usr/share/lintian/overrides/golang-goptlib-dev