[dovecot/core] 2a85b1: lib-sasl: Fix oauthbearer compatibility with 2.2

[GitHub]

  Branch: refs/heads/master-2.2
  Home:   https://github.com/dovecot/core
  Commit: 2a85b1ab123e82fe1462af951f3f751bc2588dea
      https://github.com/dovecot/core/commit/2a85b1ab123e82fe1462af951f3f751bc2588dea
  Author: Aki Tuomi <aki.tuomi at dovecot.fi>
  Date:   2017-01-24 (Tue, 24 Jan 2017)

  Changed paths:
    M src/lib-sasl/mech-oauthbearer.c

  Log Message:
  -----------
  lib-sasl: Fix oauthbearer compatibility with 2.2