pgsql: Standardize naming of malloc/realloc/strdup wrapper functions.

Standardize naming of malloc/realloc/strdup wrapper functions.

We had a number of variants on the theme of "malloc or die", with the
majority named like "pg_malloc", but by no means all. Standardize on the
names pg_malloc, pg_malloc0, pg_realloc, pg_strdup. Get rid of pg_calloc
entirely in favor of using pg_malloc0.

This is an essentially cosmetic change, so no back-patch. (I did find
a couple of places where psql and pg_dump were using plain malloc or
strdup instead of the pg_ versions, but they don't look significant
enough to bother back-patching.)

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/a563d941803535dbd27d4191fe7729497b7fdf31

Modified Files
--------------
contrib/oid2name/oid2name.c | 42 ++++++++--------
contrib/pgbench/pgbench.c | 58 +++++++++++-----------
src/bin/initdb/initdb.c | 82 +++++++++++++++---------------
src/bin/pg_basebackup/pg_basebackup.c | 14 +++---
src/bin/pg_basebackup/pg_receivexlog.c | 8 ++--
src/bin/pg_basebackup/receivelog.c | 2 +-
src/bin/pg_basebackup/streamutil.c | 10 ++--
src/bin/pg_basebackup/streamutil.h | 6 +-
src/bin/pg_ctl/pg_ctl.c | 35 ++++++--------
src/bin/pg_dump/compress_io.c | 2 +-
src/bin/pg_dump/dumpmem.c | 7 +--
src/bin/pg_dump/dumpmem.h | 2 +-
src/bin/pg_dump/pg_backup_archiver.c | 22 ++++----
src/bin/pg_dump/pg_backup_custom.c | 6 +-
src/bin/pg_dump/pg_backup_directory.c | 6 +-
src/bin/pg_dump/pg_backup_tar.c | 10 ++--
src/bin/pg_dump/pg_dump.c | 4 +-
src/bin/pg_dump/pg_dump_sort.c | 2 +-
src/bin/psql/command.c | 4 +-
src/bin/psql/common.c | 18 +------
src/bin/psql/common.h | 3 +-
src/bin/psql/copy.c | 2 +-
src/bin/psql/describe.c | 8 ++--
src/bin/psql/print.c | 84 ++++++++++----------------------
src/bin/psql/psqlscan.l | 2 +-
src/bin/psql/startup.c | 4 +-
src/bin/scripts/common.c | 34 ++++++++++---
src/bin/scripts/common.h | 2 +
28 files changed, 223 insertions(+), 256 deletions(-)