Fix ZK plugin name (docker-archive#233)

Signed-off-by: Bill Farner <[email protected]>

Author: wfarner

example/flavor/zookeeper/main.go

@@ -12,7 +12,7 @@ import (
 func main() {
 
 	logLevel := cli.DefaultLogLevel
-	name := "flavor-zooker"
+	name := "flavor-zookeeper"
 
 	cmd := &cobra.Command{
 		Use:   os.Args[0],