Thread: pgsql: Fix a couple of memory leaks in src/bin/pg_basebackup/

Fix a couple of memory leaks in src/bin/pg_basebackup/

These have been introduced by 7fbe0c8, and could happen for
pg_basebackup and pg_receivewal.

Per report from Coverity for the ones in walmethods.c, I have spotted
the ones in receivelog.c after more review.

Backpatch-through: 10

Branch
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REL_13_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/2c7395aad7e849235faac4ead5f69700cfd3c21b

Modified Files
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src/bin/pg_basebackup/receivelog.c | 6 ++++++
src/bin/pg_basebackup/walmethods.c | 7 +++++++
src/bin/pg_basebackup/walmethods.h | 4 ++--
3 files changed, 15 insertions(+), 2 deletions(-)