CHANGELOG: add Go 1.10+ for 3.4
@@ -47,6 +47,7 @@ See [code changes](https://github.com/coreos/etcd/compare/v3.3.0...v3.4.0) and [
- Move `"github.com/coreos/etcd/etcdserver/auth"` to [`"github.com/coreos/etcd/etcdserver/v2auth"`](https://github.com/coreos/etcd/pull/9275).
- Change v3 `etcdctl snapshot` exit codes with [`snapshot` package](https://github.com/coreos/etcd/pull/9118/commits/df689f4280e1cce4b9d61300be13ca604d41670a).
- Exit on error with exit code 1 (no more exit code 5 or 6 on `snapshot save/restore` commands).
+- Require Go 1.10+.
### Added(`etcd`)
