IndexError: list index out of range on "salt '*' monit.summary" - re-open #5871

[kantselovich]

#5871 was not really fixed by #5875

 $ sudo salt 'xxx-yyyyy-qa' monit.summary
xxx-yyyyy-qa:
    Traceback (most recent call last):
      File "/usr/lib/python2.6/site-packages/salt/minion.py", line 659, in _thread_return
        return_data = func(*args, **kwargs)
      File "/usr/lib/python2.6/site-packages/salt/modules/monit.py", line 114, in summary
        parts[0].strip(), parts[1], parts[2].strip()
    IndexError: list index out of range

the error happens because monit.py tries to get values from empty list, which is a result of parsing empty string.