> cat file31
999999000 "Name" "this is text for line one
line two
line three"
888888000 "Yep" "All on one line"
777777111 "Yes" "Another good text"
555555999 "Name" "this is other text for line one
line two
line three"

> cat calc_file31
rm file32
while read line
  do
  if [ `echo "$line" | tr -d " " | grep '"$'` ]
   then
    echo "$line""~" >>file32
   else
    echo "$line" >>file32
  fi
done <file31

cat file32 | tr "\n" " " | tr "~" "\n"

> calc_file31
999999000 "Name" "this is text for line one line two line three"
 888888000 "Yep" "All on one line"
 777777111 "Yes" "Another good text"
 555555999 "Name" "this is other text for line one line two line three"
>