PREUN

/bin/sh

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

POSTIN

/bin/sh

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