Prefer VERIFY0P(n) over VERIFY3P(n, ==, NULL)

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Sponsored-by: https://despairlabs.com/sponsor/
Closes #17591

module/os/freebsd/spl/spl_kmem.c

@@ -160,7 +160,7 @@ kmem_cache_create(const char *name, size_t bufsize, size_t align,
 {
 	kmem_cache_t *cache;
 
-	ASSERT3P(vmp, ==, NULL);
+	ASSERT0P(vmp);
 
 	cache = kmem_alloc(sizeof (*cache), KM_SLEEP);
 	strlcpy(cache->kc_name, name, sizeof (cache->kc_name));

module/os/freebsd/spl/spl_sysevent.c

@@ -256,7 +256,7 @@ sysevent_worker(void *arg __unused)
 	 * free `ze`, so just inline the free() here -- events have already
 	 * been drained.
 	 */
-	VERIFY3P(ze->ze_zevent, ==, NULL);
+	VERIFY0P(ze->ze_zevent);
 	kmem_free(ze, sizeof (zfs_zevent_t));
 
 	kthread_exit();