fresh install of postgres 7.1 doesn't start postmaster with the "-i" flag

I used to run postgres 7.0
I just upgraded to postgres 7.1

my application wouldn't work until I added

 -o "-i"

to the pg_ctl
 line in /etc/rc.d/init.d/postgresql

( i am running redhat 6.2 )

the -i flag is of course to enable tcp networking.

I don't think i Had to do this with postgres 7.0,
is this omission in postgres 7.1 intentional?