fix windows not respecting --msvc-lib-dir, --kernel32-lib-dir
fix windows not respecting --msvc-lib-dir, --kernel32-lib-dir

I believe this was a regression caused by
51a6ff18d454f4cb0faa0f1837df9f0c55a80b43

closes #927

Dimenus/zig,Dimenus/zig,raulgrell/zig,zig-lang/zig,raulgrell/zig,raulgrell/zig,zig-lang/zig,raulgrell/zig,Dimenus/zig,andrewrk/zig,zig-lang/zig,andrewrk/zig,raulgrell/zig