gad 1974e185f8 Correct the calculation of "a leap year" in parseDWM. The calculation
would only match a leap year every 400 years.  The parseDWM code first
showed up in April 2000, so the first time this bug would cause any
confusion is in Feb 2004.

MFC after:	18 days
2003-09-14 00:56:50 +00:00
..