/usr/ is in golang-github-btcsuite-btcd-chaincfg-chainhash-dev 0.0+git20161209.0.7a4cc89-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/gocode/src/github.com/
/usr/share/gocode/src/github.com/btcsuite/
/usr/share/gocode/src/github.com/btcsuite/btcd/
/usr/share/gocode/src/github.com/btcsuite/btcd/chaincfg/
/usr/share/
/usr/share/doc/
/usr/share/doc/golang-github-btcsuite-btcd-chaincfg-chainhash-dev/
/usr/share/doc/golang-github-btcsuite-btcd-chaincfg-chainhash-dev/changelog.Debian.gz
/usr/share/doc/golang-github-btcsuite-btcd-chaincfg-chainhash-dev/copyright
/usr/share/gocode/
/usr/share/gocode/src/
/usr/share/gocode/src/github.com/btcsuite/btcd/chaincfg/chainhash/
/usr/share/gocode/src/github.com/btcsuite/btcd/chaincfg/chainhash/doc.go
/usr/share/gocode/src/github.com/btcsuite/btcd/chaincfg/chainhash/hash.go
/usr/share/gocode/src/github.com/btcsuite/btcd/chaincfg/chainhash/hash_test.go
/usr/share/gocode/src/github.com/btcsuite/btcd/chaincfg/chainhash/hashfuncs.go
/usr/share/gocode/src/github.com/btcsuite/btcd/chaincfg/chainhash/hashfuncs_test.go