OS-3280 need a way to specify the root of a native system in the lx brand
OS-3279 lx brand should allow delegated datasets
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>

@@ -595,10 +595,12 @@
         void (*funcp)(psinfo_t *);
 
         const char *optstr;
         optdesc_t *optd;
         int nmatches, c;
+        const char *zroot;
+        char buf[PATH_MAX];
 
         DIR *dirp;
 
         (void) setlocale(LC_ALL, "");
         (void) textdomain(TEXT_DOMAIN);

@@ -624,10 +626,16 @@
         } else
                 optstr = PGREP_OPTS;
 
         opterr = 0;
 
+        zroot = zone_get_nroot();
+        if (zroot != NULL) {
+                (void) snprintf(buf, sizeof (buf), "%s/%s", zroot, g_procdir);
+                g_procdir = buf;
+        }
+
         while (optind < argc) {
                 while ((c = getopt(argc, argv, optstr)) != (int)EOF) {
 
                         if (c == ':' || c == '?' ||
                             g_optdtab[c - 'A'].o_opts == 0) {