pgsql: Fix variable name and comment

Fix variable name and comment

Should match the name of the related GUC variable.

Discussion: https://www.postgresql.org/message-id/da4a680a-5d8a-4663-a5c8-a3ccbf23394a@eisentraut.org

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/541e8f14a185495f814ae0a0876a0d0c4118833a

Modified Files
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src/backend/utils/error/elog.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)