fix build

packages/taler-harness/src/index.ts

@@ -196,7 +196,7 @@ configCli
       res = config.getPath(args.get.section, args.get.option);
     }
     if (res.isDefined()) {
-      console.log(res.value);
+      console.log(res.getValue());
     } else {
       console.warn("not found");
       process.exit(1);

packages/taler-util/src/talerconfig.ts

@@ -112,6 +112,10 @@ export class ConfigValue<T> {
   isDefined(): boolean {
     return this.value !== undefined;
   }
+
+  getValue(): string | undefined {
+    return this.value
+  }
 }
 
 /**