Split ARG commands

Signed-off-by: Daniel Widerin <daniel@widerin.net>

Author: saily

Dockerfile

@@ -2,9 +2,9 @@ FROM frolvlad/alpine-glibc:latest
 
 MAINTAINER Daniel Widerin <daniel@widerin.net>
 
-ARG OC_VERSION=4.2 \
-    BUILD_DEPS='tar gzip' \
-    RUN_DEPS='curl ca-certificates gettext'
+ARG OC_VERSION=4.2
+ARG BUILD_DEPS='tar gzip'
+ARG RUN_DEPS='curl ca-certificates gettext'
 
 RUN apk --no-cache add $BUILD_DEPS $RUN_DEPS && \
     curl -sLo /tmp/oc.tar.gz https://mirror.openshift.com/pub/openshift-v$(echo $OC_VERSION | cut -d'.' -f 1)/clients/oc/$OC_VERSION/linux/oc.tar.gz && \