Correct the calculation of the year for the 31'st of December of 2000
[wine] / dlls / winspool /
drwxr-xr-x   ..
-rw-r--r-- 50 .cvsignore
-rw-r--r-- 269 Makefile.in
-rw-r--r-- 123749 info.c
drwxr-xr-x - tests
-rw-r--r-- 5205 winspool.drv.spec
-rw-r--r-- 1547 wspool.c