pgsql: Do wal_level and hot standby checks when doing crash-then-archiv

Do wal_level and hot standby checks when doing crash-then-archive recovery.

CheckRequiredParameterValues() should perform the checks if archive recovery
was requested, even if we are going to perform crash recovery first.

Reported by Kyotaro HORIGUCHI. Backpatch to 9.2, like the crash-then-archive
recovery mode.

Branch
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REL9_3_STABLE

Details
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http://git.postgresql.org/pg/commitdiff/a5363a696a46d97b94ac63394f3952e9769ee113

Modified Files
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src/backend/access/transam/xlog.c |    4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)