XXX Remove nawk(1)

*** 204,214 ****
          fi
  
          # Estimate image size and add %10 overhead for ufs stuff.
          # Note, we can't use du here in case $UNPACKED_ROOT is on a filesystem,
          # e.g. zfs, in which the disk usage is less than the sum of the file
!         # sizes.  The nawk code
          #
          #       {t += ($7 % 1024) ? (int($7 / 1024) + 1) * 1024 : $7}
          #
          # below rounds up the size of a file/directory, in bytes, to the
          # next multiple of 1024.  This mimics the behavior of ufs especially
--- 204,214 ----
          fi
  
          # Estimate image size and add %10 overhead for ufs stuff.
          # Note, we can't use du here in case $UNPACKED_ROOT is on a filesystem,
          # e.g. zfs, in which the disk usage is less than the sum of the file
!         # sizes.  The awk code
          #
          #       {t += ($7 % 1024) ? (int($7 / 1024) + 1) * 1024 : $7}
          #
          # below rounds up the size of a file/directory, in bytes, to the
          # next multiple of 1024.  This mimics the behavior of ufs especially
*** 216,230 ****
          # bigger than if du was called on a ufs directory.
          #
          # if the operation in turn is compressing the files the amount
          # of typical shrinkage is used to come up with a useful archive
          # size
!         size=$(find "$UNPACKED_ROOT" -ls | nawk '
              {t += ($7 % 1024) ? (int($7 / 1024) + 1) * 1024 : $7}
              END {print int(t * 1.10 / 1024)}')
          if [ "$COMPRESS" = true ] ; then
!                 size=`echo $size | nawk '{s = $1} END {print int(s * 0.6)}'`
          fi
  
          /usr/sbin/mkfile ${size}k "$TMR"
  
          LOFIDEV=`/usr/sbin/lofiadm -a "$TMR"`
--- 216,230 ----
          # bigger than if du was called on a ufs directory.
          #
          # if the operation in turn is compressing the files the amount
          # of typical shrinkage is used to come up with a useful archive
          # size
!         size=$(find "$UNPACKED_ROOT" -ls | /usr/xpg4/bin/awk '
              {t += ($7 % 1024) ? (int($7 / 1024) + 1) * 1024 : $7}
              END {print int(t * 1.10 / 1024)}')
          if [ "$COMPRESS" = true ] ; then
!                 size=`echo $size | /usr/xpg4/bin/awk '{s = $1} END {print int(s * 0.6)}'`
          fi
  
          /usr/sbin/mkfile ${size}k "$TMR"
  
          LOFIDEV=`/usr/sbin/lofiadm -a "$TMR"`