* xCAT-client: allow pgsqlsetup(1) to accept additional pg_hba.conf entries
Currently pgsqlsetup(1) only sets up the MN ip address for access via
pg_hba.conf. This change adds a -a flag to allow the user to specify
additional addresses for use in that file.
This is useful for users who already know what IP addresses will be
used by their service nodes, so they can pass them directly to the
pgsqlsetup program, without needing to edit pg_hba.conf (and avoiding
needing to restart postgresql and xcat after the edit).
* xCAT-client: fix formatting in pgsqlsetup(1)
* pgsqlsetup.1.pod: clarify default setup
* pgsqlsetup.1.pod: update usage section to reflect access flag
* pgsqlsetup.1: refresh documentation
* xCAT-client/bin/pgsqlsetup: add -a/--access to usage statement
