cmd/release: make Windows installer require WinXP SP2+

Instead of Win2k.

Fixes golang/go#16544

Change-Id: I6068e402428a7cc65f18e4d236801ce609a73d56
Reviewed-on: https://go-review.googlesource.com/33354
Reviewed-by: Quentin Smith <quentin@golang.org>
1 file changed