Reformat the comments in pg_hba.conf and pg_ident.conf

These files have apparently been edited over the years by a dozen people
with as many different editor settings, which made the alignment of the
paragraphs quite inconsistent and ugly.  I made a pass of M-q with Emacs
to straighten it out.

src/backend/libpq/pg_hba.conf.sample

 # PostgreSQL Client Authentication Configuration File
 # ===================================================
 #
-# Refer to the "Client Authentication" section in the
-# PostgreSQL documentation for a complete description
-# of this file.  A short synopsis follows.
+# Refer to the "Client Authentication" section in the PostgreSQL
+# documentation for a complete description of this file.  A short
+# synopsis follows.
 #
 # This file controls: which hosts are allowed to connect, how clients
 # are authenticated, which PostgreSQL user names they can use, which
@@ -16,54 +16,57 @@
 #
 # (The uppercase items must be replaced by actual values.)
 #
-# The first field is the connection type: "local" is a Unix-domain socket,
-# "host" is either a plain or SSL-encrypted TCP/IP socket, "hostssl" is an
-# SSL-encrypted TCP/IP socket, and "hostnossl" is a plain TCP/IP socket.
+# The first field is the connection type: "local" is a Unix-domain
+# socket, "host" is either a plain or SSL-encrypted TCP/IP socket,
+# "hostssl" is an SSL-encrypted TCP/IP socket, and "hostnossl" is a
+# plain TCP/IP socket.
 #
-# DATABASE can be "all", "sameuser", "samerole", "replication",
-# a database name, or a comma-separated list thereof.
+# DATABASE can be "all", "sameuser", "samerole", "replication", a
+# database name, or a comma-separated list thereof.
 #
-# USER can be "all", a user name, a group name prefixed with "+", or
-# a comma-separated list thereof.  In both the DATABASE and USER fields
-# you can also write a file name prefixed with "@" to include names from
-# a separate file.
+# USER can be "all", a user name, a group name prefixed with "+", or a
+# comma-separated list thereof.  In both the DATABASE and USER fields
+# you can also write a file name prefixed with "@" to include names
+# from a separate file.
 #
-# CIDR-ADDRESS specifies the set of hosts the record matches.
-# It is made up of an IP address and a CIDR mask that is an integer
-# (between 0 and 32 (IPv4) or 128 (IPv6) inclusive) that specifies
-# the number of significant bits in the mask.  Alternatively, you can write
-# an IP address and netmask in separate columns to specify the set of hosts.
-# Instead of a CIDR-address, you can write "samehost" to match any of the 
-# server's own IP addresses, or "samenet" to match any address in any subnet
-# that the server is directly connected to.
+# CIDR-ADDRESS specifies the set of hosts the record matches.  It is
+# made up of an IP address and a CIDR mask that is an integer (between
+# 0 and 32 (IPv4) or 128 (IPv6) inclusive) that specifies the number
+# of significant bits in the mask.  Alternatively, you can write an IP
+# address and netmask in separate columns to specify the set of hosts.
+# Instead of a CIDR-address, you can write "samehost" to match any of
+# the server's own IP addresses, or "samenet" to match any address in
+# any subnet that the server is directly connected to.
 #
-# METHOD can be "trust", "reject", "md5", "password", "gss", "sspi", "krb5",
-# "ident", "pam", "ldap" or "cert".  Note that "password" sends passwords
-# in clear text; "md5" is preferred since it sends encrypted passwords.
+# METHOD can be "trust", "reject", "md5", "password", "gss", "sspi",
+# "krb5", "ident", "pam", "ldap" or "cert".  Note that "password"
+# sends passwords in clear text; "md5" is preferred since it sends
+# encrypted passwords.
 #
 # OPTIONS are a set of options for the authentication in the format
-# NAME=VALUE. The available options depend on the different authentication
-# methods - refer to the "Client Authentication" section in the documentation
-# for a list of which options are available for which authentication methods.
+# NAME=VALUE.  The available options depend on the different
+# authentication methods -- refer to the "Client Authentication"
+# section in the documentation for a list of which options are
+# available for which authentication methods.
 #
-# Database and user names containing spaces, commas, quotes and other special
-# characters must be quoted. Quoting one of the keywords "all", "sameuser",
-# "samerole" or "replication" makes the name lose its special character,
-# and just match a database or username with that name.
+# Database and user names containing spaces, commas, quotes and other
+# special characters must be quoted.  Quoting one of the keywords
+# "all", "sameuser", "samerole" or "replication" makes the name lose
+# its special character, and just match a database or username with
+# that name.
 #
 # This file is read on server startup and when the postmaster receives
 # a SIGHUP signal.  If you edit the file on a running system, you have
-# to SIGHUP the postmaster for the changes to take effect.  You can use
-# "pg_ctl reload" to do that.
+# to SIGHUP the postmaster for the changes to take effect.  You can
+# use "pg_ctl reload" to do that.
 
 # Put your actual configuration here
 # ----------------------------------
 #
 # If you want to allow non-local connections, you need to add more
-# "host" records. In that case you will also need to make PostgreSQL listen
-# on a non-local interface via the listen_addresses configuration parameter,
-# or via the -i or -h command line switches.
-#
+# "host" records.  In that case you will also need to make PostgreSQL
+# listen on a non-local interface via the listen_addresses
+# configuration parameter, or via the -i or -h command line switches.
 
 @authcomment@
 

src/backend/libpq/pg_ident.conf.sample

 # PostgreSQL User Name Maps
 # =========================
 #
-# Refer to the PostgreSQL Administrator's Guide, chapter "Client
-# Authentication" for a complete description.  A short synopsis follows.
+# Refer to the PostgreSQL documentation, chapter "Client
+# Authentication" for a complete description.  A short synopsis
+# follows.
 #
-# This file controls PostgreSQL username mapping. It maps
-# external user names to their corresponding
-# PostgreSQL user names.  Records are of the form:
+# This file controls PostgreSQL user name mapping.  It maps external
+# user names to their corresponding PostgreSQL user names.  Records
+# are of the form:
 #
 # MAPNAME  SYSTEM-USERNAME  PG-USERNAME
 #
@@ -18,21 +19,22 @@
 # existence of a record specifies that SYSTEM-USERNAME may connect as
 # PG-USERNAME.
 #
-# If SYSTEM-USERNAME starts with a slash (/), it will be treated as
-# a regular expression.  Optionally this can contain a capture (a
+# If SYSTEM-USERNAME starts with a slash (/), it will be treated as a
+# regular expression.  Optionally this can contain a capture (a
 # parenthesized subexpression).  The substring matching the capture
-# will be substituted for \1 (backslash-one) if present in PG-USERNAME.
+# will be substituted for \1 (backslash-one) if present in
+# PG-USERNAME.
 #
 # Multiple maps may be specified in this file and used by pg_hba.conf.
 #
-# No map names are defined in the default configuration.  If all system
-# user names and PostgreSQL user names are the same, you don't need
-# anything in this file.
+# No map names are defined in the default configuration.  If all
+# system user names and PostgreSQL user names are the same, you don't
+# need anything in this file.
 #
 # This file is read on server startup and when the postmaster receives
 # a SIGHUP signal.  If you edit the file on a running system, you have
-# to SIGHUP the postmaster for the changes to take effect.  You can use
-# "pg_ctl reload" to do that.
+# to SIGHUP the postmaster for the changes to take effect.  You can
+# use "pg_ctl reload" to do that.
 
 # Put your actual configuration here
 # ----------------------------------

src/bin/initdb/initdb.c

@@ -42,7 +42,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  * Portions taken from FreeBSD.
  *
- * $PostgreSQL: pgsql/src/bin/initdb/initdb.c,v 1.182 2010/01/06 23:23:51 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/initdb/initdb.c,v 1.183 2010/01/26 06:58:39 petere Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -120,10 +120,10 @@ static int	n_buffers = 50;
  * Warning messages for authentication methods
  */
 #define AUTHTRUST_WARNING \
-"# CAUTION: Configuring the system for local \"trust\" authentication allows\n" \
-"# any local user to connect as any PostgreSQL user, including the database\n" \
-"# superuser. If you do not trust all your local users, use another\n" \
-"# authentication method.\n"
+"# CAUTION: Configuring the system for local \"trust\" authentication\n" \
+"# allows any local user to connect as any PostgreSQL user, including\n" \
+"# the database superuser.  If you do not trust all your local users,\n" \
+"# use another authentication method.\n"
 static char *authwarning = NULL;
 
 /*