5218 posix definition of NULL
correct unistd.h and iso/stddef_iso.h
update gate source affected

@@ -551,11 +551,11 @@
     struct timeval *tvp, int ok_if_empty)
 {
         int r;
 
         r = inst_get_single_val(inst, SCF_PG_RESTARTER, pname, SCF_TYPE_TIME,
-            tvp, NULL, ok_if_empty ? EMPTY_OK : 0, 0, 1);
+            tvp, 0, ok_if_empty ? EMPTY_OK : 0, 0, 1);
 
         return (r == 0 ? 0 : -1);
 }
 
 static int

@@ -1648,11 +1648,11 @@
         if (wip->pg == NULL) {
                 r = get_restarter_time_prop(wip->inst,
                     SCF_PROPERTY_STATE_TIMESTAMP, &tv, 0);
         } else {
                 r = pg_get_single_val(wip->pg, SCF_PROPERTY_STATE_TIMESTAMP,
-                    SCF_TYPE_TIME, &tv, NULL, 0);
+                    SCF_TYPE_TIME, &tv, 0, 0);
         }
 
         if (r != 0) {
                 /*
                  * There's something amiss with our service

@@ -1700,11 +1700,11 @@
         if (wip->pg == NULL)
                 r = get_restarter_time_prop(wip->inst,
                     SCF_PROPERTY_STATE_TIMESTAMP, &tv, 0);
         else
                 r = pg_get_single_val(wip->pg, SCF_PROPERTY_STATE_TIMESTAMP,
-                    SCF_TYPE_TIME, &tv, NULL, 0);
+                    SCF_TYPE_TIME, &tv, 0, 0);
 
         if (r == 0) {
                 int64_t sec;
                 int32_t us;
 

@@ -2512,11 +2512,11 @@
                     SCF_TYPE_ASTRING, buf, max_scf_fmri_length + 1, 0) == 0)
                         (void) printf(fmt, DETAILED_WIDTH,
                             gettext("next_state"), buf);
 
                 if (pg_get_single_val(rpg, SCF_PROPERTY_STATE_TIMESTAMP,
-                    SCF_TYPE_TIME, &tv, NULL, 0) == 0) {
+                    SCF_TYPE_TIME, &tv, 0, 0) == 0) {
                         stime = tv.tv_sec;
                         tmp = localtime(&stime);
                         for (tbsz = 50; ; tbsz *= 2) {
                                 timebuf = safe_malloc(tbsz);
                                 if (strftime(timebuf, tbsz, NULL, tmp) != 0)