XXX Remove nawk(1)

*** 22,32 ****
  #
  #       Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T
  #         All Rights Reserved
  
  
- #ident  "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.6   */
  #       "lastlogin - keep record of date each person last logged in"
  #       "bug - the date shown is usually 1 more than it should be "
  #       "       because lastlogin is run at 4am and checks the last"
  #       "       24 hrs worth of process accounting info (in pacct)"
  PATH=/usr/lib/acct:/usr/bin:/usr/sbin
--- 22,31 ----
*** 55,65 ****
  #       "name and adds the date"
  #       "line 3 - sorts in reverse order by login name; gets"
  #       "1st occurrence of each login name and resorts by date"
  acctmerg -a < nite/ctacct.$_day | \
  sed -e "s/^[^   ]*[     ]\([^   ]*\)[   ].*/$_d  \1/" | \
! nawk    '/^00-00-00/ {
                  $0 = "00" $0
          }
          /^[0-9][0-9]-/ {
                  d=substr($0,1,2);
                  if (d<=68) {
--- 54,64 ----
  #       "name and adds the date"
  #       "line 3 - sorts in reverse order by login name; gets"
  #       "1st occurrence of each login name and resorts by date"
  acctmerg -a < nite/ctacct.$_day | \
  sed -e "s/^[^   ]*[     ]\([^   ]*\)[   ].*/$_d  \1/" | \
! /usr/xpg4/bin/awk       '/^00-00-00/ {
                  $0 = "00" $0
          }
          /^[0-9][0-9]-/ {
                  d=substr($0,1,2);
                  if (d<=68) {
*** 68,78 ****
                          $0 = "19" $0
                  }
          }
          { print }' - sum/loginlog | \
  sort -r +1 | uniq +10 | sort | \
! nawk    '/^[0-9][0-9][0-9][0-9]-/ {
          $0 = substr($0,3)
      }
      { print }' > sum/tmploginlog
  cp sum/tmploginlog sum/loginlog
  rm -f sum/tmploginlog
--- 67,77 ----
                          $0 = "19" $0
                  }
          }
          { print }' - sum/loginlog | \
  sort -r +1 | uniq +10 | sort | \
! /usr/xpg4/bin/awk       '/^[0-9][0-9][0-9][0-9]-/ {
          $0 = substr($0,3)
      }
      { print }' > sum/tmploginlog
  cp sum/tmploginlog sum/loginlog
  rm -f sum/tmploginlog