Starting Postgres with -i option

[mike]

In FC2 how do you get the init scripts to start postgres with -i enabled

I have tried editing postmaster.opts (int script overwrites it)
Editing the startup line in /etc/rc.d/init.d/postgresql - postgres fails
to start

from the command line ie:postmaster -i -p 5432 -D /var/lib/pgsql/data/

it works

Ideas?