Log Message:
-----------
Avoid a memory allocation in the backend startup code, to avoid having to check
whether it failed. Modelled after catcache.c's usage of DlList, per suggestion
from Tom.
Modified Files:
--------------
pgsql/src/backend/postmaster:
postmaster.c (r1.578 -> r1.579)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/postmaster/postmaster.c?r1=1.578&r2=1.579)