Avoid casting pointer to unsigned long long for NULL check
This allows compilation on i386 with -WError. Otherwise we see
this:
../source4/torture/smb2/durable_open.c:41:23: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
__location__, #v, (unsigned long long)v, (unsigned long long)correct); \
because the pointer is 32 bits, while long long is 64.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>