delete UofT; requested change from Henry Spencer <henry@zoo.toronto.edu>

alpha3.3

Henry Spencer's fix for end-of-word matching
Word matching considers '_' to terminate a word, i.e. vm_page_free\>
matches vm_page_free_count. This isn't historic vi practice.

4.4BSD snapshot (revision 8.1); add 1993 to copyright

Henry Spencer's Alpha 3.0 regex release

date and time created 92/08/06 11:58:10 by bostic