Log Message:
-----------
Improve tablespace discussion, and bring it up to date with code.
Modified Files:
--------------
pgsql-server/doc/src/sgml:
manage-ag.sgml (r2.31 -> r2.32)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/doc/src/sgml/manage-ag.sgml.diff?r1=2.31&r2=2.32)