pgsql: Fix incorrect format placeholders

Fix incorrect format placeholders

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/dfaa346c7c00ff8a3fd8ea436a7d5be7527e67cb

Modified Files
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src/backend/utils/mmgr/aset.c | 2 +-
src/backend/utils/mmgr/generation.c | 2 +-
src/backend/utils/mmgr/mcxt.c | 8 ++++----
src/backend/utils/mmgr/slab.c | 2 +-
4 files changed, 7 insertions(+), 7 deletions(-)