migration from postgresql-7.2. to 7.4.1 : invalid command \n

I did a pg_dump with the -d option during the extract.
Inside the dump I have a lot of \012. i replace those with \n (carriage
return).

But when I try to import into a new DB I had : invalid command \n

Is ther e a better way to add carriage return in the sql file ?

Thank !