Fix _exit implementation.

- add missing status parameter
- tabs are evil
- use sys.exit instead of raising KeyboarInterrupt (it raises SystemExit)

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2562 71dcc9de-d417-0410-9af5-da40c76e7ee4

neo/tests/functional/__init__.py

@@ -87,13 +87,9 @@ class NEOProcess(object):
             print 'Error executing %r.' % (command + ' ' + ' '.join(args), )
             self._exit(-1)
 
-    def _exit(self):
-	# KeyboardInterrupt is not intercepted by test runner (it is still
-	# above us in the stack), and we do want to exit.
-	# To avoid polluting test foreground output with induced
-	# traceback, replace stdout & stderr.
+    def _exit(self, status=0):
         sys.stdout = sys.stderr = open('/dev/null', 'w')
-	raise KeyboardInterrupt
+        sys.exit(status)
 
     def kill(self, sig=signal.SIGTERM):
         if self.pid: