10110 get_tz_countries shouldn't check array for NULL

*** 22,32 ****
  /*
   * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
! #pragma ident   "%Z%%M% %I%     %E% SMI"
  
  #include <stdlib.h>
  #include <stdio.h>
  #include <string.h>
  #include <unistd.h>
--- 22,34 ----
  /*
   * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
! /*
!  * Copyright (c) 2018, Joyent, Inc.
!  */
  
  #include <stdlib.h>
  #include <stdio.h>
  #include <string.h>
  #include <unistd.h>
*** 209,222 ****
          struct tz_country *head = NULL, *prev = NULL, *next, *cp, *cp2;
          int sav_errno = 0, ncount, i;
          int cmp, status;
          size_t len, len_coord, len_ctnt;
  
-         if (cont->ctnt_name == NULL) {
-                 errno = EINVAL;
-                 return (-1);
-         }
          len_ctnt = strlen(cont->ctnt_name);
          ccbuf[0] = '\0';
  
          /* open zone_sun.tab and country.tab files */
          if ((fp_zone = fopen(ZONE_SUN_TAB, "r")) == NULL) {
--- 211,220 ----