[HACKERS] minor typo in client-auth.sgml

Hi,

I was reading about SCRAM and the changes in the docs and found that
in this sentence (in doc/src/sgml/client-auth.sgml:925) there is a
missing comma (,) when listing the "password-based authentication
methods":

"""   The password-based authentication methods are <literal>scram</>   <literal>md5</> and <literal>password</>.
"""

-- 
Jaime Casanova                      www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services