🚀 go-pugleaf

Sigh.  As Darrel points out, there are indeed TWO off-by-one bugs: one
that affects all date conversion (caused by the zero-based vs. one-based
confusion), and one that only affects date parsing (the functions
il:idate and cl:encode-universal-time, which incorrectly compute the day
of the year after Feb 28 of a non-leap year).  Thus, you need to back up
\EndDST all the way to 303 to fix both (and \BeginDST when 1990 roles
around).  You care about date parsing mainly if you ever pass around
file creation dates as a string sans time zone info.

I trust we are all now thoroughly confused and can go back to real work
:-)

	Bill