journal: use empty_to_null() in one more place

Follow-up for 45bcab66a9.
2024-03-15 16:07:58 +01:00
parent c78e86ab8d
commit 80fcdb731d
1 changed files with 2 additions and 8 deletions
@@ -95,10 +95,7 @@ static int parse_argv(int argc, char *argv[]) {
                        return version();

                case 't':
-                        if (isempty(optarg))
-                                arg_identifier = NULL;
-                        else
-                                arg_identifier = optarg;
+                        arg_identifier = empty_to_null(optarg);
                        break;

                case 'p':
@@ -122,10 +119,7 @@ static int parse_argv(int argc, char *argv[]) {
                        break;

                case ARG_NAMESPACE:
-                        if (isempty(optarg))
-                                arg_namespace = NULL;
-                        else
-                                arg_namespace = optarg;
+                        arg_namespace = empty_to_null(optarg);
                        break;

                case '?':