[Python-checkins] [python/cpython] f8d05b: bpo-30387: Fix warning in test_threading (#1634)

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/python/cpython
  Commit: f8d05b3a24e745ab4a974b891ac1389e2f11ce4d
      https://github.com/python/cpython/commit/f8d05b3a24e745ab4a974b891ac1389e2f11ce4d
  Author: Victor Stinner <victor.stinner at gmail.com>
  Date:   2017-05-17 (Wed, 17 May 2017)

  Changed paths:
    M Lib/test/test_threading.py

  Log Message:
  -----------
  bpo-30387: Fix warning in test_threading (#1634)

test_is_alive_after_fork() now joins directly the thread to avoid the
following warning added by bpo-30357:

Warning -- threading_cleanup() failed to cleanup 0 threads
after 2 sec (count: 0, dangling: 21)

Use also a different exit code to catch generic exit code 1.