[Checkins] [zopefoundation/zope.testbrowser] 4f8bf1: Fix AttributeError 'mech_control'

[Michael Howitz]

  Branch: refs/heads/icemac-patch-1
  Home:   https://github.com/zopefoundation/zope.testbrowser
  Commit: 4f8bf12d2835f53f744976b331012619659e83d2
      https://github.com/zopefoundation/zope.testbrowser/commit/4f8bf12d2835f53f744976b331012619659e83d2
  Author: Michael Howitz <mh at gocept.com>
  Date:   2019-11-12 (Tue, 12 Nov 2019)

  Changed paths:
    M src/zope/testbrowser/browser.py

  Log Message:
  -----------
  Fix AttributeError 'mech_control'