[Dockerfiles] Replaced deprecated MAINTAINER with LABEL

Used format proposed in https://docs.docker.com/engine/reference/builder/#maintainer-deprecated
2017-05-13 15:33:32 +02:00
parent 0a90bdc4df
commit d0d0961006
7 changed files with 7 additions and 7 deletions
--- a/data/Dockerfiles/dovecot/Dockerfile
+++ b/data/Dockerfiles/dovecot/Dockerfile
@@ -1,6 +1,6 @@
 FROM debian:stretch-slim
 #ubuntu:xenial
-MAINTAINER Andre Peters <andre.peters@servercow.de>
+LABEL maintainer "Andre Peters <andre.peters@servercow.de>"

 ENV DEBIAN_FRONTEND noninteractive
 ENV LC_ALL C