MAINTAINER is deprecated, using LABEL now

cglewis · cglewis · commit 642d999da90f · 2017-10-31T18:27:47.000-07:00
diff --git a/sample/Dockerfile b/sample/Dockerfile
@@ -1,5 +1,5 @@
 FROM node:8.4.0-slim
-MAINTAINER Jonathan Gros-Dubois
+LABEL maintainer="Jonathan Gros-Dubois"
 
 LABEL version="9.0.7"
 LABEL description="Docker file for SocketCluster with support for clustering."
