Make new_session default to True.

This way, we can effectively kill all subprocesses. This worked for
slapproxy because Flask calls setsid internally, but slapgrid-* doesn't, so
they wouldn't be killed by killpg.

erp5/util/testnode/ProcessManager.py

@@ -104,7 +104,7 @@ class ProcessManager(object):
       raise CancellationError("Test Result was cancelled")
     get_output = kw.pop('get_output', True)
     log_prefix = kw.pop('log_prefix', '')
-    new_session = kw.pop('new_session', False)
+    new_session = kw.pop('new_session', True)
     subprocess_kw = {}
     cwd = kw.pop('cwd', None)
     if cwd:

erp5/util/testnode/testnode.py

@@ -340,7 +340,7 @@ branch = %(branch)s
             # result. We only do cleanup if the test runner itself is not able
             # to run.
             process_manager.spawn(*invocation_list,
-              cwd=config['test_suite_directory'], new_session=True,
+              cwd=config['test_suite_directory'],
               log_prefix='runTestSuite', get_output=False)
             if remote_logger:
               remote_logger.quit = True