jwack: fix a typo in the "wrong number of tokens on exit" error.
jwack: fix a typo in the "wrong number of tokens on exit" error.

Not that we ever see that error, except when I'm screwing around.

pombredanne/redo,rowhit/redo,rowhit/redo,rowhit/redo,rowhit/redo,pombredanne/redo,dinkelk/redo-python,apenwarr/redo,dinkelk/redo-python,dinkelk/redo-python,pombredanne/redo,pombredanne/redo,apenwarr/redo,apenwarr/redo,apenwarr/redo,dinkelk/redo-python