pgsql: Fix thinko in previous commit.

Fix thinko in previous commit.

We must still initialize minRecoveryPoint if we start straight with archive
recovery, e.g when recovering from a normal base backup taken with
pg_start/stop_backup. Otherwise we never consider the system consistent.

Branch
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REL9_2_STABLE

Details
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http://git.postgresql.org/pg/commitdiff/ca60f0c422bd2c8538ee945d5f5e81eb498ddfde

Modified Files
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src/backend/access/transam/xlog.c |    6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)