validate build-arg
validate build-arg

Signed-off-by: sakeven <2b6a7f9e5a9658f2afe11baa7fc7248281f0bde2@sina.cn>

gdevillele/cli,docker/cli,riyazdf/cli,docker/cli,ashfall/cli,cpuguy83/cli,dnephin/cli,dnephin/cli,thaJeztah/cli,allencloud/cli,redpanda/cli,allencloud/cli,riyazdf/cli,Zebrilee/cli,cpuguy83/cli,thaJeztah/cli,e11137/cli,Zebrilee/cli,e11137/cli,redpanda/cli,ashfall/cli