pgsql: Fix for early log messages during postmaster startup getting lost

Log Message:
-----------
Fix for early log messages during postmaster startup getting lost when
running as a service on Win32.

Per report from Harald Armin Massa.

Backpatch to 8.2.

Tags:
----
REL8_2_STABLE

Modified Files:
--------------
    pgsql/src/backend/postmaster:
        postmaster.c (r1.505.2.2 -> r1.505.2.3)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/postmaster/postmaster.c.diff?r1=1.505.2.2&r2=1.505.2.3)
    pgsql/src/backend/utils/error:
        elog.c (r1.178 -> r1.178.2.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/error/elog.c.diff?r1=1.178&r2=1.178.2.1)