/usr/share/gocode/src/github.com/docker/libnetwork/networkdb/ is in golang-github-docker-libnetwork-dev 0.8.0-dev.2+git20170202.599.45b4086-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/gocode/src/github.com/docker/libnetwork/networkdb/broadcast.go
/usr/share/gocode/src/github.com/docker/libnetwork/networkdb/cluster.go
/usr/share/gocode/src/github.com/docker/libnetwork/networkdb/delegate.go
/usr/share/gocode/src/github.com/docker/libnetwork/networkdb/event_delegate.go
/usr/share/gocode/src/github.com/docker/libnetwork/networkdb/message.go
/usr/share/gocode/src/github.com/docker/libnetwork/networkdb/networkdb.go
/usr/share/gocode/src/github.com/docker/libnetwork/networkdb/networkdb.pb.go
/usr/share/gocode/src/github.com/docker/libnetwork/networkdb/networkdb.proto
/usr/share/gocode/src/github.com/docker/libnetwork/networkdb/networkdb_test.go
/usr/share/gocode/src/github.com/docker/libnetwork/networkdb/watch.go