run/broken: exclude "improved" route from run_broken_service (#1640)

* run/broken: exclude "improved" route from run_broken_service

* Whitespace checkstyle blind fix.

* fix styling

Author: grayside

run/hello-broken/src/main/java/com/example/cloudrun/App.java

@@ -49,7 +49,7 @@ public static void main(String[] args) {
           res.status(200);
           return String.format("Hello %s!", name);
         });
-
+    // [END run_broken_service]
     get(
         "/improved",
         (req, res) -> {
@@ -63,6 +63,8 @@ public static void main(String[] args) {
           res.status(200);
           return String.format("Hello %s!", name);
         });
+
+    // [START run_broken_service]
   }
 }
 // [END run_broken_service]