[Checkins] [zopefoundation/zope.interface] e53e79: Simplify the string formatting rules for the Inval...

[Jason Madden]

  Branch: refs/heads/issue171
  Home:   https://github.com/zopefoundation/zope.interface
  Commit: e53e797787f645b20c5598fe9ffab81134309ed3
      https://github.com/zopefoundation/zope.interface/commit/e53e797787f645b20c5598fe9ffab81134309ed3
  Author: Jason Madden <jamadden at gmail.com>
  Date:   2020-02-10 (Mon, 10 Feb 2020)

  Changed paths:
    M docs/verify.rst
    M src/zope/interface/exceptions.py
    M src/zope/interface/tests/test_exceptions.py
    M src/zope/interface/verify.py

  Log Message:
  -----------
  Simplify the string formatting rules for the Invalid exceptions.

As per review.

Also include the actual failing implementation object in the BrokenMethodImplementation to make it easier to track down what's going on when inheritance is involved.