fix WARNING pid 24503 (uhsoctl): ioctl sign-extension ioctl ffffffff8044692b

[Enji Cooper (yaneurabeya)]

FYI!

> On Oct 25, 2018, at 4:38 AM, Marcin Cieslak <saper at saper.info> wrote:
> 
> The following patch seems to fix the signed ioctl value warnings
> in uhsoctl().
> 
> The code is the same in the current and stable branches.
> 
> Marcin
> 
> Index: usr.sbin/uhsoctl/uhsoctl.c
> ===================================================================
> --- usr.sbin/uhsoctl/uhsoctl.c	(revision 339406)
> +++ usr.sbin/uhsoctl/uhsoctl.c	(working copy)
> @@ -360,7 +360,7 @@
> 
> /* Add/remove IP address from an interface */
> static int
> -ifaddr_ad(int d, const char *ifnam, struct sockaddr *sa, struct sockaddr *mask)
> +ifaddr_ad(unsigned long d, const char *ifnam, struct sockaddr *sa, struct sockaddr *mask)
> {
> 	struct ifaliasreq req;
> 	int fd, error;
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