chore: unify with other plugins

subcommands/clone

@@ -16,7 +16,7 @@ service-clone-cmd() {
   #F -r|--root-password PASSWORD, override the root-level service password
   declare desc="create container <new-name> then copy data from <name> into <new-name>"
   local cmd="$PLUGIN_COMMAND_PREFIX:clone" argv=("$@"); [[ ${argv[0]} == "$cmd" ]] && shift 1
-  declare SERVICE="$1" NEW_SERVICE="$2" CLONE_FLAGS_LIST="${@:3}"
+  declare SERVICE="$1" NEW_SERVICE="$2" CLONE_FLAGS_LIST=("${@:3}")
   is_implemented_command "$cmd" || dokku_log_fail "Not yet implemented"
 
   [[ -z "$SERVICE" ]] && dokku_log_fail "Please specify a valid name for the service"