/usr/ is in golang-github-graylog2-go-gelf-dev 0.0~git20160329.0.76d60fc-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/doc/
/usr/share/doc/golang-github-graylog2-go-gelf-dev/
/usr/share/doc/golang-github-graylog2-go-gelf-dev/README.md
/usr/share/doc/golang-github-graylog2-go-gelf-dev/changelog.Debian.gz
/usr/share/doc/golang-github-graylog2-go-gelf-dev/copyright
/usr/share/gocode/
/usr/share/gocode/src/
/usr/share/gocode/src/github.com/
/usr/share/gocode/src/github.com/Graylog2/
/usr/share/gocode/src/github.com/Graylog2/go-gelf/
/usr/share/gocode/src/github.com/Graylog2/go-gelf/gelf/
/usr/share/gocode/src/github.com/Graylog2/go-gelf/gelf/reader.go
/usr/share/gocode/src/github.com/Graylog2/go-gelf/gelf/writer.go
/usr/share/gocode/src/github.com/Graylog2/go-gelf/gelf/writer_test.go