Log Message:
-----------
Remove statement that GiST indexes aren't WAL-logged.
Modified Files:
--------------
pgsql/doc/src/sgml:
gist.sgml (r1.18 -> r1.19)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/gist.sgml.diff?r1=1.18&r2=1.19)