christos 340077b543 - fix parsing bug reported by mycroft: ! was only recognized in the beginning
of pipelines. Now we are recognizing it everywhere like ksh, so:

	! if [ a = b ]; then ! echo c && ! true; else ! echo d; fi

  works.
1996-11-25 20:22:00 +00:00
..
1996-11-10 23:58:22 +00:00
1996-11-10 23:58:22 +00:00