Merge pull request #43 from samuelkarp/fix-config

plugin: initialize Config

Author: AkihiroSuda

plugin/plugin.go

@@ -31,8 +31,9 @@ type Config struct {
 
 func init() {
 	plugin.Register(&plugin.Registration{
-		Type: plugin.SnapshotPlugin,
-		ID:   "zfs",
+		Type:   plugin.SnapshotPlugin,
+		ID:     "zfs",
+		Config: &Config{},
 		InitFn: func(ic *plugin.InitContext) (interface{}, error) {
 			ic.Meta.Platforms = append(ic.Meta.Platforms, platforms.DefaultSpec())