pgsql-server: Paranoia: ensure MyBackendId is InvalidBackendId in a

Log Message:
-----------
Paranoia: ensure MyBackendId is InvalidBackendId in a process that has
never executed SIBackendInit().

Modified Files:
--------------
pgsql-server/src/backend/utils/init:
globals.c (r1.89 -> r1.90)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/utils/init/globals.c.diff?r1=1.89&r2=1.90)