pgsql: Enable replication connections by default in pg_hba.conf

Enable replication connections by default in pg_hba.conf

initdb now initializes a pg_hba.conf that allows replication connections
from the local host, same as it does for regular connections. The
connecting user still needs to have the REPLICATION attribute or be a
superuser.

The intent is to allow pg_basebackup from the local host to succeed
without requiring additional configuration.

Michael Paquier <michael(dot)paquier(at)gmail(dot)com> and me

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/be37c2120a2a88e5ba852d42952c77b6bf5d5271

Modified Files
--------------
doc/src/sgml/ref/initdb.sgml | 16 +++++++++++-----
src/backend/libpq/pg_hba.conf.sample | 6 +++---
src/bin/initdb/initdb.c | 5 -----
src/bin/pg_basebackup/t/010_pg_basebackup.pl | 7 ++-----
src/test/perl/PostgresNode.pm | 19 ++-----------------
5 files changed, 18 insertions(+), 35 deletions(-)