tianon/gosu 1.7 on GitHub

update to use github.com/opencontainers/runc/libcontainer instead of github.com/docker/libcontainer
add arm64, ppc64, and ppc64le to cross-compiled official binaries

4096R / B42F 6819 007F 00F8 8E36 4FD4 036A 9C25 BF35 7DD4

$ curl -o gosu -fsSL "https://github.com/tianon/gosu/releases/download/1.7/gosu-$(dpkg --print-architecture)"
$ chmod +x gosu
$ ./gosu
Usage: ./gosu user-spec command [args]
   ie: ./gosu tianon bash
       ./gosu nobody:root bash -c 'whoami && id'
       ./gosu 1000:1 id

./gosu version: 1.7 (go1.5.1 on linux/amd64; gc)