Log Message:
-----------
Flush CopyOutResponse when starting streaming in walsender, so that it's
not delayed until the first WAL record is sent.
Fujii Masao
Modified Files:
--------------
pgsql/src/backend/replication:
walsender.c (r1.12 -> r1.13)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/replication/walsender.c?r1=1.12&r2=1.13)