armbian-next: cli: a bit more untangling of re-launching; introduce ARMBIAN_CLI_RELAUNCH_COMMAND and cli_standard_relaunch_docker_or_sudo()

- `configdump` cli: force root/docker

lib/functions/cli/cli-configdump.sh

@@ -1,9 +1,11 @@
 function cli_config_dump_pre_run() {
 	declare -g CONFIG_DEFS_ONLY='yes'
+	# "gimme root on a Linux machine"
+	cli_standard_relaunch_docker_or_sudo
 }
 
 function cli_config_dump_run() {
 	# configuration etc - it initializes the extension manager
 	do_capturing_defs prepare_and_config_main_build_single # this sets CAPTURED_VARS
-	echo "${CAPTURED_VARS}" # to stdout!
+	echo "${CAPTURED_VARS}"                                # to stdout!
 }