Log Message:
-----------
Clarify use of MD5 authentication and pg_shadow encryption.
Modified Files:
--------------
pgsql/doc/src/sgml:
client-auth.sgml (r1.74 -> r1.75)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/client-auth.sgml.diff?r1=1.74&r2=1.75)