pgsql: Standardize the printf format for st_size

Standardize the printf format for st_size

Existing code used various inconsistent ways to printf struct stat's
st_size member. The type of that is off_t, which is in most cases a
signed 64-bit integer, so use the long long int format for it.

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/c005eb00e7d878cb869854f592103f774e15d01e

Modified Files
--------------
src/backend/access/transam/twophase.c | 12 ++++++------
src/backend/access/transam/xlogarchive.c | 6 +++---
src/bin/pg_basebackup/pg_receivewal.c | 4 ++--
src/bin/pg_verifybackup/pg_verifybackup.c | 8 ++++----
src/fe_utils/archive.c | 6 +++---
5 files changed, 18 insertions(+), 18 deletions(-)