Fix new warnings from GCC 7

Peter Eisentraut <peter_e@gmx.net>

Commit: 6275f5d28a1577563f53f2171689d4f890a46881

Author: Peter Eisentraut <peter_e@gmx.net>

Date: 2017-04-17T17:59:46Z

Fix new warnings from GCC 7

This addresses the new warning types -Wformat-truncation
-Wformat-overflow that are part of -Wall, via -Wformat, in GCC 7.

Files

Path	Change	+/−
contrib/pg_standby/pg_standby.c	modified	+3 −3
src/backend/access/heap/rewriteheap.c	modified	+2 −2
src/backend/access/transam/xlog.c	modified	+3 −3
src/backend/postmaster/pgstat.c	modified	+2 −2
src/backend/replication/basebackup.c	modified	+2 −2
src/backend/replication/logical/reorderbuffer.c	modified	+1 −1
src/backend/replication/logical/snapbuild.c	modified	+2 −2
src/backend/replication/slot.c	modified	+3 −3
src/backend/storage/file/copydir.c	modified	+5 −5
src/backend/storage/file/fd.c	modified	+6 −6
src/backend/storage/file/reinit.c	modified	+4 −4
src/backend/storage/ipc/dsm.c	modified	+2 −2
src/backend/utils/adt/dbsize.c	modified	+7 −7
src/backend/utils/adt/genfile.c	modified	+2 −2
src/backend/utils/cache/relcache.c	modified	+2 −2
src/backend/utils/error/elog.c	modified	+1 −1
src/backend/utils/time/snapmgr.c	modified	+2 −2
src/bin/pg_archivecleanup/pg_archivecleanup.c	modified	+2 −2
src/bin/pg_basebackup/pg_receivewal.c	modified	+2 −2
src/bin/pg_resetwal/pg_resetwal.c	modified	+6 −6
src/bin/pg_rewind/copy_fetch.c	modified	+5 −5
src/common/file_utils.c	modified	+2 −2
src/timezone/pgtz.c	modified	+2 −2