Subject: [quicwg/base-drafts] b84d5c: lost_pn can no longer be negative

From: ianswett <[email-masked]>
Date: Mon, 15 Apr 2019 08:38:14 -0700

Branch: refs/heads/ianswett-lost-pn
  Home:   https://github.com/quicwg/base-drafts
  Commit: b84d5cba6993fc8158d14df876ba12ca14ec7312
      https://github.com/quicwg/base-drafts/commit/b84d5cba6993fc8158d14df876ba12ca14ec7312
  Author: ianswett <[email-masked]>
  Date:   2019-04-15 (Mon, 15 Apr 2019)

  Changed paths:
    M draft-ietf-quic-recovery.md

  Log Message:
  -----------
  lost_pn can no longer be negative

And 0 is a valid packet number, so defaulting largest_acked_packet to 0 is inherently incorrect.

Fixes #2611