Subject: [quicwg/base-drafts] 19ee6d: lost_pn can no longer go negative

From: ianswett <[email-masked]>
Date: Mon, 15 Apr 2019 08:35:53 -0700

Branch: refs/heads/ianswett-no-crypto-data
  Home:   https://github.com/quicwg/base-drafts
  Commit: 19ee6d735c8c8085db713b881bf7e54123d65b63
      https://github.com/quicwg/base-drafts/commit/19ee6d735c8c8085db713b881bf7e54123d65b63
  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 go negative

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

Fixes #2611