pgsql: Fix typos.

Fix typos.

Reviewed-by: Michael Paquier
Discussion: https://postgr.es/m/CA%2BhUKGJFWXmtYo6Frd77RR8YXCHz7hJ2mRy5aHV%3D7fJOqDnBHA%40mail.gmail.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/7988cb446d20512ec9d091db66dba6adee3f3d4b

Modified Files
--------------
src/backend/executor/execTuples.c               | 2 +-
src/backend/replication/logical/reorderbuffer.c | 2 +-
src/backend/storage/file/sharedfileset.c        | 2 +-
src/bin/pg_dump/pg_backup.h                     | 2 +-
src/bin/pg_dump/pg_backup_archiver.h            | 2 +-
src/bin/pg_dump/pg_backup_directory.c           | 2 +-
src/bin/pg_dump/pg_backup_null.c                | 2 +-
src/bin/pg_dump/pg_backup_tar.c                 | 2 +-
8 files changed, 8 insertions(+), 8 deletions(-)