PREUN

/bin/sh

if [[ "$1" = "0" ]]; then
  perl -ni -e "/^DICT\s*st\s*ZA\s*st_ZA$/ or print" /usr/share/dict/ooo/dictionary.lst
fi

POSTIN

/bin/sh

if [[ ! -f "/usr/share/dict/ooo/dictionary.lst" ]] ||       ! grep -q "^DICT[ \t]*st[ \t]*ZA[ \t]*st_ZA" /usr/share/dict/ooo/dictionary.lst
then
  echo "DICT st ZA st_ZA" >> /usr/share/dict/ooo/dictionary.lst
fi