[w3c/webauthn] e65e43: Use || uniformly for concatenation. (#615)

  Branch: refs/heads/master
  Home:   https://github.com/w3c/webauthn
  Commit: e65e43ed53dcdb411d34a9d75decfc14e768c503
      https://github.com/w3c/webauthn/commit/e65e43ed53dcdb411d34a9d75decfc14e768c503
  Author: Jeffrey Yasskin <jyasskin@gmail.com>
  Date:   2017-10-11 (Wed, 11 Oct 2017)

  Changed paths:
    M index.bs

  Log Message:
  -----------
  Use || uniformly for concatenation. (#615)

Fixes #562.