XXX Remove nawk(1)

*** 94,104 ****
                  CLIENTS=`echo $i | /usr/bin/sed -n -e 's/,/ /g' \
                      -e '/:/s/^.*://p'`
                  /usr/sbin/etrn -b $SERVER $CLIENTS >/dev/null 2>&1 &
          done
  
!         if /usr/bin/nawk 'BEGIN{s = 1}
              $2 == "/var/mail" && $3 == "nfs" && $4 !~ /actimeo=0/ &&
              $4 !~ /noac/{s = 0} END{exit s}' /etc/mnttab; then
  
                  /usr/bin/logger -p mail.crit "$ERRMSG1"
                  /usr/bin/logger -p mail.crit "$ERRMSG2"
--- 94,104 ----
                  CLIENTS=`echo $i | /usr/bin/sed -n -e 's/,/ /g' \
                      -e '/:/s/^.*://p'`
                  /usr/sbin/etrn -b $SERVER $CLIENTS >/dev/null 2>&1 &
          done
  
!         if /usr/xpg4/bin/awk 'BEGIN{s = 1}
              $2 == "/var/mail" && $3 == "nfs" && $4 !~ /actimeo=0/ &&
              $4 !~ /noac/{s = 0} END{exit s}' /etc/mnttab; then
  
                  /usr/bin/logger -p mail.crit "$ERRMSG1"
                  /usr/bin/logger -p mail.crit "$ERRMSG2"