pgsql: Log the correct ending timestamp in recovery_target_xid mode.

Log the correct ending timestamp in recovery_target_xid mode.

When ending recovery based on recovery_target_xid matching with
recovery_target_inclusive = off, we printed an incorrect timestamp
(always 2000-01-01) in the "recovery stopping before ... transaction"
log message. This is a consequence of sloppy refactoring in
c945af80c: the code to fetch recordXtime out of the commit/abort
record used to be executed unconditionally, but it was changed
to get called only in the RECOVERY_TARGET_TIME case. We need only
flip the order of operations to restore the intended behavior.

Per report from Torsten Förtsch. Back-patch to all supported
branches.

Discussion: https://postgr.es/m/CAKkG4_kUevPqbmyOfLajx7opAQk6Cvwkvx0HRcFjSPfRPTXanA@mail.gmail.com

Branch
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REL_11_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/0a269527f6a1151fe95efe4a8c2112a6e4b66496

Modified Files
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src/backend/access/transam/xlog.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)