fix(cmserve): feedback example printed a result

Author: PlexSheep

src/bins/cmserve.rs

@@ -108,7 +108,7 @@ fn example_feedbacks() {
     for f in feedbacks {
         println!(
             "{}",
-            serde_json::to_string(&JsonUI::format_feedback(f)).unwrap()
+            serde_json::to_string(&JsonUI::format_feedback(f).unwrap()).unwrap()
         )
     }
 }