from release notes PostgreSQL 8: the server now listens on localhost by default, which eliminates the need for the -i postmaster switch in many scenarios

postgresql/rc.postgresql

@@ -19,7 +19,7 @@
     postgresql_pgpool="no"
 
 %common
-    postgresql_opts="-i -h $postgresql_socket_inet -k $postgresql_socket_unix"
+    postgresql_opts="-h $postgresql_socket_inet -k $postgresql_socket_unix"
     postgresql_opts="$postgresql_opts $postgresql_flags"
     postgresql_log_file="@l_prefix@/var/postgresql/run/postgresql.log"
     postgresql_slony1_pidfile="@l_prefix@/var/postgresql/run/slon.pid"