coreos/etcd — pull request #121 by philips (2013-08-16 22:14:36+00:00)
Title: feat(go_version): check go version at build time

```
$ ./build can't load package: package github.com/coreos/etcd:
src/github.com/coreos/etcd/go_version.go:3:1: expected 'package', found
'STRING' "etcd requires go 1.1 or greater to build"
```