bash completion for docker {run,create} --storage-opt

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

contrib/completion/bash/docker

@@ -2176,6 +2176,7 @@ _docker_run() {
 		--security-opt
 		--shm-size
 		--stop-signal
+		--storage-opt
 		--tmpfs
 		--sysctl
 		--ulimit
@@ -2362,6 +2363,11 @@ _docker_run() {
 			fi
 			return
 			;;
+		--storage-opt)
+			COMPREPLY=( $( compgen -W "size" -S = -- "$cur") )
+			__docker_nospace
+			return
+			;;
 		--user|-u)
 			__docker_complete_user_group
 			return