Update pgpass Win32 wording.

doc/src/sgml/libpq.sgml

-<!-- $PostgreSQL: pgsql/doc/src/sgml/libpq.sgml,v 1.233 2007/02/20 17:47:04 tgl Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/libpq.sgml,v 1.234 2007/02/20 19:35:17 momjian Exp $ -->
 
  <chapter id="libpq">
   <title><application>libpq</application> - C Library</title>
@@ -4341,8 +4341,8 @@ On Unix systems, the permissions on <filename>.pgpass</filename> must disallow
 any access to world or group; achieve this by the command
 <command>chmod 0600 ~/.pgpass</command>.
 If the permissions are less strict than this, the file will be ignored.
-On Microsoft Windows, the file is stored in a directory that is secure by
-default, so no special permissions check is made.
+On Microsoft Windows, it is assumed that the file is stored in a directory
+that is secure, so no special permissions check is made.
 </para>
 </sect1>