Region tag must start in column 1 (GoogleCloudPlatform#1287)

Deleted a space before the END region tag.

Author: navinger

endpoints/getting-started/app.yaml

@@ -11,4 +11,4 @@ endpoints_api_service:
   # 'gcloud endpoints services deploy openapi-appengine.yaml' command.
   name: ENDPOINTS-SERVICE-NAME
   config_id: ENDPOINTS-CONFIG-ID
-  # [END configuration]
+ # [END configuration]