3244 utmpd.c: fix uninitialized variable, ret_val and other gcc warnings

*** 17,26 ****
--- 17,30 ----
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
+  * Copyright 2014 Shruti V Sampat <shrutisampat@gmail.com>
+  */
+ 
+ /*
   * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
*** 175,186 ****
  /*
   * main()  - Main does basic setup and calls wait_for_pids() to do the work
   */
  
  int
! main(argc, argv)
!         char **argv;
  {
          char *defp;
          struct rlimit rlim;
          int i;
          time_t curtime, now;
--- 179,189 ----
  /*
   * main()  - Main does basic setup and calls wait_for_pids() to do the work
   */
  
  int
! main(int argc, char *argv[])
  {
          char *defp;
          struct rlimit rlim;
          int i;
          time_t curtime, now;
*** 347,357 ****
  wait_for_pids()
  {
          register struct pollfd *pfd;
          register int i;
          pid_t pid;
!         int ret_val;
          int timeout;
          static time_t last_timeout  = 0;
          static int bad_error  = 0;      /* Count of POLL errors */
  
          /*
--- 350,360 ----
  wait_for_pids()
  {
          register struct pollfd *pfd;
          register int i;
          pid_t pid;
!         int ret_val = 0;
          int timeout;
          static time_t last_timeout  = 0;
          static int bad_error  = 0;      /* Count of POLL errors */
  
          /*