As far as I can see, the startup script doesn't have the option.
I believe that if you need to pass it then use
pg_ctl -o "-i" ..... (your other startup stuff)
as pg_ctl doesn't pass this directly. The -o passes options to postgres/postmaster.
I don't believe the option is needed for a standard AOLserver /Open ACS on the same machine. I came across it when setting up a ODBC connection.
BTW has anyone composed a PostgreSQL/ daemontools startup process that integrates with the AOLserver/Daemontools startup (love that HOWTO)?
