Log Message:
-----------
Describe the behavior of the SQL_ASCII encoding more accurately.
Modified Files:
--------------
pgsql/doc/src/sgml:
charset.sgml (r2.73 -> r2.74)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/charset.sgml.diff?r1=2.73&r2=2.74)