Or maybe you were using CVS, but the buggy change to
ad_html_security_check had already been committed, so that file didn't
show up when doing a "cvs -nq up". In that case,
cvs2cl
is handy for generating a date-ordered log of
every commit
that's been done - very useful for this sort of "what the heck files
has someone committed lately and maybe broken?" sort of question.