Thread: pgsql: Fix small memory leaks in GUC checks

Fix small memory leaks in GUC checks

Follow-up commit to a9d58bfe8a3a.  Backpatch down to v16 where
this was added in order to keep the code consistent for future
backpatches.

Author: Tofig Aliev <t.aliev@postgrespro.ru>
Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Reviewed-by: Masahiko Sawada <sawada.mshk@gmail.com>
Discussion: https://postgr.es/m/bba4313fdde9db46db279f96f3b748b1@postgrespro.ru
Backpatch-through: 16

Branch
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REL_16_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/be9dac9afc25a1edaf4ad708b4efb909029b4198

Modified Files
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src/backend/commands/variable.c | 4 ++++
1 file changed, 4 insertions(+)