the /metrics endpoint is accessible from everywhere

Author: Vladimir Kotal

apiary.apib

@@ -4,7 +4,7 @@ HIFORMAT: 1A
 
 OpenGrok RESTful API documentation. The following endpoints are accessible under `/api/v1`
 
-Besides `/suggester` and `/search` endpoints, everything is accessible from `localhost` only.
+Besides `/suggester`, `/search` and `/metrics` endpoints, everything is accessible from `localhost` only.
 
 ## Annotation [/annotation{?path}]