Use LABEL instead of MAINTAINER for Dockerfile (kubernetes#18142)

inductor · k8s-ci-robot · commit e4b68517abee · 2019-12-18T07:03:58.000-08:00
* Use LABEL instead of MAINTAINER

* add =
diff --git a/Dockerfile b/Dockerfile
@@ -6,7 +6,7 @@
 
 FROM alpine:latest
 
-MAINTAINER Luc Perkins <lperkins@linuxfoundation.org>
+LABEL maintainer="Luc Perkins <lperkins@linuxfoundation.org>"
 
 RUN apk add --no-cache \
     curl \
