pgsql: Print off_t/pgoff_t consistently as %lld

Print off_t/pgoff_t consistently as %lld

This was the dominant style already, but some places used %llu
instead. Since off_t/pgoff_t are signed types, using %lld seems a
better match, and it might handle obscure error conditions with
negative values better.

Reviewed-by: Heikki Linnakangas <hlinnaka(at)iki(dot)fi>
Reviewed-by: Chao Li <li(dot)evan(dot)chao(at)gmail(dot)com>
Discussion: https://www.postgresql.org/message-id/flat/20ce62fa-47fc-457b-b504-12f3c1651726%40eisentraut.org

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/c22d2f7fd46c692c83152773387be6b731c1a4b9

Modified Files
--------------
src/bin/pg_combinebackup/reconstruct.c | 10 +++++-----
src/bin/pg_dump/pg_backup_tar.c | 8 ++++----
src/bin/pg_rewind/libpq_source.c | 2 +-
src/bin/pg_verifybackup/astreamer_verify.c | 4 ++--
src/bin/pg_verifybackup/pg_verifybackup.c | 6 +++---
5 files changed, 15 insertions(+), 15 deletions(-)