Log Message:
-----------
Add more detail for non-TEXT cast release item.
Modified Files:
--------------
pgsql/doc/src/sgml:
release.sgml (r1.538 -> r1.539)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/release.sgml?r1=1.538&r2=1.539)