pgsql: Fix thinkos in comments - Mailing list pgsql-committers

Fix thinkos in comments

The first one was noticed by Tender Wang and introduced with
8aba9322511f; the other one was newly introduced with dbca3469ebf8.

Branch
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REL_15_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/468ffee47bcb9c8b7b4f7b3168aef804a3ad802c

Modified Files
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src/backend/executor/execPartition.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)