bash completion for `docker daemon --authz-plugin`

Signed-off-by: Harald Albers <github@albersweb.de>

contrib/completion/bash/docker

@@ -656,6 +656,7 @@ _docker_daemon() {
 	local options_with_args="
 		$global_options_with_args
 		--api-cors-header
+		--authz-plugin
 		--bip
 		--bridge -b
 		--cluster-advertise