PREUN

/bin/sh

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

POSTIN

/bin/sh

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