doc update

docsite/latest/rst/playbooks2.rst

@@ -483,9 +483,12 @@ The results will have a new key "attempts" which will have the number of the ret
      The Do/Until does not take decision on whether to fail or pass the play when the maximum retries are completed, the user can
      can do that in the next task as follows:
     
-    - name: fail the play
-      fail: msg=" This play fails as the foo exceeded maximum retries"
-      fail_when: register.attempts >= 5
+     - action: shell /usr/bin/foo
+       register: result
+       until: register.stdout.find("all systems go") != -1
+       retries: 5
+       delay: 10
+       failed_when: result.attempts == 5
 
 
 Loops