Use a better aws command for example script

Author: Graham Krizek

example.sh

@@ -9,7 +9,7 @@ handler () {
     EVENT_JSON=$(echo $EVENT_DATA | jq .)
 
     # Example of AWS command that's output will show up in CloudWatch Logs
-    aws s3 ls s3://bucket
+    aws s3 ls
 
     # This is the return value because it's being sent to stderr (>&2)
     echo "{\"success\": true}" >&2