IDATE (VXT) Intrinsic Fix

[craig@jcb-sc.com]

>Is that already in g77 ?  If not it would be a nice addition (though
>perhaps not for 1.1.2).

It's on my list (adding warnings about references to non-Y2K-compliant
intrinsics, like VXT IDate).  egcs 1.2, surely.

        tq vm, (burley)