[Checkins] [zopefoundation/zope.interface] 34d4b0: Okay okay I'll use --user

[Marius Gedminas]

  Branch: refs/heads/fix-macos-maybe
  Home:   https://github.com/zopefoundation/zope.interface
  Commit: 34d4b0bcf14af8f099bd6d5cc40690157ca683d0
      https://github.com/zopefoundation/zope.interface/commit/34d4b0bcf14af8f099bd6d5cc40690157ca683d0
  Author: Marius Gedminas <marius at gedmin.as>
  Date:   2019-11-11 (Mon, 11 Nov 2019)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Okay okay I'll use --user