[PATCH] winhttp: initialize schemes (Coverity) (resubmit)

[Hans Leidekker]

On Tue, 2013-05-28 at 22:46 +0200, Marcus Meissner wrote:
>  1020943 Uninitialized scalar variable
> 
> schemes is |= in the called function, but not
> initialized before.
> 
> Was submitted 2 weeks ago already, I think it is good. 

It's good but query_auth_schemes is called from more places, so
it would be better to fix it in that helper, without touching the
parameter on error.