Fix import typo in rpm build patch

When running minions on CentOS (but, not Ubuntu), was getting the following error when executing salt 'target' state.highstate from the master:

[WARNING ] The minion function caused an exception: Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/salt/minion.py", line 359, in _thread_return
    ret['return'] = func(*args, **kwargs)
  File "/usr/lib/python2.6/site-packages/salt/modules/state.py", line 129, in highstate
    salt.utils.daemonize_if(__opts__, **kwargs)
  File "/usr/lib/python2.6/site-packages/salt/utils/__init__.py", line 200, in daemonize_if
    import salt.minon
ImportError: No module named minon

Fixing the typo allows running of state.highstate.