pgsql: Fix checking for recovery state in WaitForLSN()

Fix checking for recovery state in WaitForLSN()

We only need to do it for WAIT_LSN_TYPE_REPLAY.  WAIT_LSN_TYPE_FLUSH can work
for both primary and follower.

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/7742f99a02ed1679eb6baeb35491ea3cf8a3a36e

Modified Files
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src/backend/access/transam/xlogwait.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)