8226 missing boot environments cause bootadm list-menu to segfault

*** 24,33 ****
--- 24,34 ----
   */
  
  /*
   * Copyright 2015 Nexenta Systems, Inc. All rights reserved.
   * Copyright 2016 Toomas Soome <tsoome@me.com>
+  * Copyright 2017 RackTop Systems.
   */
  
  /*
   * Loader menu management.
   */
*** 180,215 ****
  static void
  print_menu_nodes(boolean_t parsable, struct hdr_info *hdr,
      struct menu_lst *menu)
  {
          struct menu_entry  *entry;
!         int i = -1;
          int rv;
          be_node_list_t *be_nodes, *be_node;
  
          rv = be_list(NULL, &be_nodes);
          if (rv != BE_SUCCESS)
                  return;
  
          STAILQ_FOREACH(entry, menu, next) {
!                 i++;
                  for (be_node = be_nodes; be_node;
                      be_node = be_node->be_next_node)
                          if (strcmp(be_node->be_root_ds, entry->bootfs) == 0)
!                                 break;
  
                  if (parsable)
                          (void) printf("%d;%s;%s;%s\n", i,
!                             be_node->be_active_on_boot == B_TRUE? "*" : "-",
                              entry->bootfs, entry->title);
                  else
                          (void) printf("%-*d %-*s %-*s %-*s\n",
                              hdr->cols[0].width, i,
                              hdr->cols[1].width,
!                             be_node->be_active_on_boot == B_TRUE? "*" : "-",
                              hdr->cols[2].width, entry->bootfs,
                              hdr->cols[3].width, entry->title);
          }
          be_free_list(be_nodes);
  }
  
  static void
--- 181,220 ----
  static void
  print_menu_nodes(boolean_t parsable, struct hdr_info *hdr,
      struct menu_lst *menu)
  {
          struct menu_entry  *entry;
!         int i = 0;
          int rv;
          be_node_list_t *be_nodes, *be_node;
  
          rv = be_list(NULL, &be_nodes);
          if (rv != BE_SUCCESS)
                  return;
  
          STAILQ_FOREACH(entry, menu, next) {
!                 boolean_t active = B_FALSE;
! 
                  for (be_node = be_nodes; be_node;
                      be_node = be_node->be_next_node)
                          if (strcmp(be_node->be_root_ds, entry->bootfs) == 0)
!                                 if (be_node->be_active_on_boot)
!                                         active = B_TRUE;
  
                  if (parsable)
                          (void) printf("%d;%s;%s;%s\n", i,
!                             active == B_TRUE ? "*" : "-",
                              entry->bootfs, entry->title);
                  else
                          (void) printf("%-*d %-*s %-*s %-*s\n",
                              hdr->cols[0].width, i,
                              hdr->cols[1].width,
!                             active == B_TRUE ? "*" : "-",
                              hdr->cols[2].width, entry->bootfs,
                              hdr->cols[3].width, entry->title);
+ 
+                 i++;
          }
          be_free_list(be_nodes);
  }
  
  static void