Dgraph leaks admin tokens via /debug/vars, flag package gets iterators

The Dgraph advisory is the one to actually go read: the /debug/vars endpoint on Alpha hands out the administrator's auth token to any unauthenticated caller, which is about as bad as a debug endpoint gets. On the language side, the flag package is finally getting range-compatible All iterators plus a Flag.IsSet method, closing a small but long-standing papercut, and there is a separate blanket approval landing for adding String and GoString methods to existing types without further review. Elsewhere the golang-nuts moderators are openly asking what to do about the steady trickle of AI-written posts to the list, which feels like a conversation every mailing list is about to have.